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1. HYSWEEP® Hardware

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1. eee e e eee eene eee eene eene e ones onuus 36 Logging Options in Hysweep Survey ecce ecce eene eee eene e eo nuun 37 Data LOL EO ica Uii tae tr pL eost a Sen area a su stecken tue aeddv na tus cave 37 B Matrix Files in Hy Sweep B Survey casae ei pene esum A e Pre RI M edu en 38 C Targeting and Target Files in Hysweep Survey ccccccccccccccccsecceeeeeeeeeeeeeeeeeeeeeeees 40 Walker TPVAY DACK qu 41 3 MULTIBEAM PROCESSING 43 I Multibeam Post processing Sequence Guides eee 43 II Multibeam Max PEOPEAIII eoi r eere eae ect re rue ainai 44 A Multibeam Max Procedure icu aetonan te bulatocsus tl atutceven teri Leto tere Da ibadeile Sal saddened 45 B jeg T 46 C Selecting Sounding Files in Multibeam Max eeeeeeeeeesseseeeeeeenrnnns 48 D File Open Options in Multibeam Max te EUER UI Ee dn 49 E Corrections in Multibeatui Max rrr re tn atu d ans 50 F Read Parameters 1m Multibeaim Max eorr bt ettet reet ade eme us 53 G Editing Data in Multibeam Max Phase One eee 66 H Editing Data in Multibeam Max Phase Two sssse enne 71 I Matrix Settings in Multibeam Max cccccccccccccccccceeeeeeeeeeeeeeeeeeeseeeseessseeeeeeeeeeeaaas ER J Editing Data in Multibeam Max Phase Three sssee
2. Show Active Filters Show Deleted Points Filter Options Apply OF L ancel d Raw Data Display Settings in Multibeam Max The Raw Data tab sets the scale of the heave pitch and roll graphs Autoscaling will show the total range of the data or you can define your own display range for each graph EIL BI E Surrey Profile Cell Heare Autoscale Min 1 00 Max 1 00 Fitch Autoscale Min 1 0 00 Max 10 00 Roll v Autoscale Min E 0 00 Man 10 00 W Autoscale Depth Elevation Minimum jo Maximum EN Show Active Filters Show Deleted Points Filter Options Apply OF Cancel e Sweep Window Display Settings in Multibeam Max The Sweep tab presents options affecting the Sweep Window Style Wiggle and Color Wiggle draw one line per sweep Wiggle is in black and white Color Wiggle is color coded according to the depths it represents Depth Colors displays a series of circles color coded according to the depth Solid TIN creates a solid shaded 3 dimensional picture HYSWEEP Processing 59 View Options Sweep Tab View Options Colors Tab 60 HYSWEEPO Processing e Color Code Based on Sonar Head draws data from one head in green and data from the other head in red Scaling e Scale to Window scales to the current sweep displayed e Scale to Entire Line scales the window to the depth range of the line not the sweep e View Options Survey
3. Profile windo C Sweep Profile Beam Pattern C Wavefront C Sounding Paints Fix Vertical Horizontal Scale 3 D Seatloo C Wiggle Display C wireframe Display Solid TIN C Color TIN Sounding Points Paint Size 4 Multibeam ww aterfal f Solid TIN Color TIN C Intensity Profile Window Sweep Profile shows the bottom profile of each sweep Beam Pattern shows each beam with color coding based on quality Wave front shows the sounding wave front and backscatter points Sounding Points Each sounding is shown as a color coded dot of user defined Point Size pixels The point size 1s defined in the 3D Seafloor options Fix Vertical Horizontal Scale keeps the view from being stretched disproportionately in either direction which causes some distortion 3D Seafloor Wiggle shows a succession of sweep profiles Wire frame shows a wire frame seafloor model with depth color coding Solid TIN shows a TIN model with illumination Color TIN shows a TIN model with depth color coding Sounding Points Each sounding is shown as a color coded dot of user defined Point Size pixels Multibeam Waterfall HYSWEEP Survey e 29 Solid TIN shows a TIN model with illumination Color TIN shows a TIN model with depth color coding Intensity If your echosounder has the capability of measuring the strength of the return signal this can be represented in gray scale A stronger return is represented by a lighte
4. 002 Pitch 425 Heading 23230 Tide o 349 Draft 290 I Matrix Settings in Multibeam Max Phase three of editing multibeam data requires that your data be gridded in a Matrix File Select FILE FILL MATRIX and the Matrix Options dialog will appear Matrix Options Matrix Options Dialog in Matrix MULTIBEAM MAX Use Hypack MTX File i Auto Size to Data Rotate to Survey Line Cell Size Auto Cell Size i Enter Cell Length and Width Length 5 00 Shallow Default Width 5 00 If a Matrix File already exists in the project you may opt to Use HYPACK Matrix File In this case you may either use the cell dimensions already defined Use Length and Width from Matrix File or you may define new dimensions by selecting Enter Cell Length and Width and typing in the new dimensions If no Matrix File exists in your project select Auto Size to Data and MULTIBEAM MAX will create a Matrix File to fit your selected data You can set the cell dimensions or let MULTIBEAM MAX set the size 7 04 HYSWEEP Processing e75 Auto Cell Size automatically calculates cell size to average 25 50 points per cell Note If the user defined cell dimensions result in cells containing more than 2000 points the program will abort loading the soundings to the matrix and ask you to input new cell dimensions Do this by reselecting FILE FILL MATRIX Shallow Default will set your cell length and width to five fe
5. LT gab X n Bar Depth 30 FRB A 911 ERC save Depth Reset Barcheck tet DLE pe See E a iu l l Holl Average a aa a re m 240 2 Click Reset Barcheck txt to begin a new Bar Check Report 3 Set your filters Depth Gate determines the scope of the display in the lower part of the window Angle Limit defaults to 75 degrees If you see indications on the sides that the outer beams are inaccurate you may need to narrow your focus We have seen instances where at 75 degrees the outer beams were hitting the chains suspending the bar thus affecting the accuracy of the test Bar Depth is the depth at which the bar is currently set Measured Depth is a calculated average of all sounding data over the three second interval 4 Set your Bar Depth and watch the data on the screen 5 When the Measured Depth stabilizes hopefully approximately equaling the Bar Depth click Save Depth This saves statistical documentation about the data gathered by each beam over the past three seconds 6 Repeat the process for each Bar Depth 7 When the test is complete click Barcheck txt to view and print the stored data in Windows Notepad While it is difficult to accurately measure the angular mounting components roll pitch and yaw of multibeam systems erro
6. Units are according to those selected under Geodesy feet or meters 3 Click OK The graphs will be updated and the new values will be applied uniformly to your data HYSWEEP Processing 67 b Heave Window in Multibeam Max The Heave Window shows Heave in time series format The graphs readily show a faulty sensor and heave drift and give a good idea of wave dynamics at the time of the survey Heave graph Heave Window l r To view the average heave pitch and roll Block Click and drag a box around the portion of the data you want to know Average about and click the B ock Average Icon The Average dialog will Icon display the number of samples and the average heave pitch and roll values included in the time span defined by your box Average Dialog 2 averace 0 60 Samples 2547 Heave 0 00 Fitch 0 32 Rall 0 32 It is important to edit heave drift This is typically found at the start and end of survey lines or where there are sharp curves in your survey lines A survey boat traveling a bit too fast could create this effect To edit the heave graph 1 Click and drag a box around the portion of data you want to edit 2 Click the N button and the Fill Options dialog for heave will appear 68 HYSWEEPO Processing 7104 Editing Heave with Fill Options Fill Options Heave jo W Delete soundings within time range OF Cancel 3 Edit the data defined
7. User s Manual HYSWEEP HYPACK Inc 56 Bradley St Middletown CT 06457 Phone 860 635 1500 Technical Support help hypack com Fax 860 635 1522 Web Address www hypack com HYPACK Inc s HYSWEEP Manual is not intended to be a complete manual but an addendum to the HYPACK MAX User s Manual for our multibeam users Registration Page The following information is required in order to register your HYPACK MAX with HYPACK Inc Registering your package enables us to send you software upgrades and to report bugs that have been found in the programs Please fill in the following information and fax it to HYPACK Inc at 860 635 1522 or email the same information to Accounting hypack com Package Hypack Max Platform Windows 2000 Hypack Max Lite Windows XP Hypack Max Survey Hypack Max Office Dredgepack License Holder Company Name Billing Address Phone Fax Email Date Purchased Purchased From Key Number FOR SHIPPING OF FUTURE UPDATES The Maintenance Plan entitles you to all program updates during that period Whereas the billing address 1s often different than where the product is actually being used please provide instructions below as to where new release CDs should be sent Contact Person Address Phone Contents 1 HYSWEEP HARDWARE 1 I II HI IV V LoOmmuouuUp II Tm Nw gt JE 4 5 O Up lt Ec A gaw T awp Sp
8. FILE SAVE TO MATRIX asks you to name your file and saves the filled matrix to the project directory 7 04 a File Save Options in Multibeam Max In the Save tab you can choose whether to save your edited data to a single file or to a catalog file where one file represents one survey line You can choose what data you want to save and if you save XYZ files specify whether to do an XYZ reduction during the edit Define the reduction criteria in the XYZ Reduction tab You may also save your edited data to the SWP format from the HYSWEEP EDITOR We recommend that you save your data first to the HS2 format to preserve all edited data The HS2 format retains all data should it be needed for further editing or correction of offsets mounting angles sound velocity etc Once this 1s saved save it again to the XYZ format for use in the Sounding Selection and Final Products programs Choose Data to Save C All Data Hysweep H5 Binary Format C Old Hysweep Edit Format SWP C AYZ Points Only ASCI XYZ Format C XYZ Points Within Zoom Area AT Reduction C No Reduction Save One Point per Cell OF Cancel b XYZ Reduction Criteria in Multibeam Max This tab is only available in the third phase of editing and provides the same results as the MAPPER program e If you choose to save XYZ data in the Save Tab the options in the XYZ Reduction Tab specify the reduction criteria It enables you to determine what informa
9. Hysweep Survey 25 29 Mapper 91 loading Hysweep Survey 37 Mapper 87 92 Multibeam Max 73 multibeam overlap statistics 25 29 30 37 naming Multibeam Max 77 positioning Multibeam Max 73 saving Multibeam Max 77 settings Mapper 91 unloading Hysweep Survey 37 7 04 matrix options dialog Mapper See Mapper settings matrix Multibeam Max See Multibeam Max settings matrix file options MRUS Motion Reference Units settings Hysweep Hardware 6 Multibeam Max 51 53 54 MTX files Hysweep Survey 30 37 Mapper 86 Multibeam Max 72 reference surveys 80 multibeam editor See Multibeam Max Multibeam Max filters depth filters 60 read filters 52 search and filter options 60 statistical filters 62 overview 42 procedure 43 settings advanced read parameters 53 54 angle limit 61 80 border options 60 channel overlay 59 color settings 55 57 colors 58 file options 43 47 heave corrections 66 read parameters 43 51 59 search criteria 63 sound velocity corrections 50 spike filter 61 targets 60 tide and draft corrections 64 tide corrections 49 undelete options 71 view options 55 59 targets 60 tools PWC File Splitter 45 tide adjustments 49 XTF to HSX file conversion 44 windows cell window 75 heave window 65 pitch roll and heading window 67 profile window 74 shell 42 HYSWEEP Processing e107 sound velocity profile window 68 sounding information window 72 survey wi
10. are optional programs that eliminate data in an attempt to speed your final product calculations without adversely affecting the accuracy of the results Overviews of each may be found later in this chapter Choose which of these programs to use based on which selection methods you like the best Multibeam Data to Multibeam Data Hyplot TIN Model or TID VEL Export Final Products 7 hi p Tide Files Multibeam Max 55 Sound Velocity Corrections Corrections XYZ Format Files Sounding Reduction XYZ Format Files Hyplot TIN Model Once your raw data has been edited and sorted 1f you so choose the resulting output is XYZ format HYPLOT TIN MODEL and EXPORT use XYZ format to create their final products 7104 HYSWEEP Processing e43 Multibeam Data to Cross Sections and Volumes Multibeam Data TID VEL i Files Tide Fles Multibeam Max gt Sound Velocity Corrections Corrections XYZ Format Files Mapper Sounding PP Sorted Reduction XYZ Format Files Planned Lines LNW gt TIN Model All Format Files Cross Sections and Volumes CROSS SECTIONS AND VOLUMES requires channel template information to do its calculations Since XYZ files contain no template data we have to convert the XYZ format to All format by loading it with a Planned Line file into the TIN MODEL program and cutting sections where the TIN Model and Planned Line intersect See Cutting Sections through a T
11. HEHE EEEE HEEE HEHE EEEE HEEE The Single Beam Test provides a statistical comparison of multibeam to single beam data 1 Run the reference survey 2 Run one or two single beam check lines through the center of the reference area immediately after running the reference survey d water depth 3 Edit the single beam check lines in the SINGLE BEAM EDITOR Reformat the check lines to XYZ format using EXPORT 5 Load the single beam check lines to MULTIBEAM MAX No cleaning 1s required as this file has already been cleaned 6 Run the Single Beam Test 7 04 Select TOOLS SINGLE BEAM TEST Click Open Reference Surface Start Test c Choose your reference surface to which you will compare the check lines from the file selection dialog d Click OK and the calculations will be made and the results displayed om The Single Beam Test calculates the differences in depth readings between the reference surface and the check lines It then graphs the number of differences in increments of 0 1 survey units Perfect accuracy would be reflected in a single vertical line centered over the Zero Since surveying technology is not perfect you should see the data presented in a bell curve Single Beam Test Multibeam Single Beam Difference Hean Difference 0 08 Max Outlier Depth Bias MB SB 0 03 954 Confidence Histogram Multibeam Single Beam Difference Ill Clipping Survey File
12. Only Bordering Bordering in 5urvey Window Edit Phase 3 Hypack Border File D XHypack sProjectskPerformance Testkperformance brd Browse Ignore Border During Search Filter C Search Filter Inside Only Hun Filters Heset All Begin Search Apply OF Cancel You can create a Border File in the BORDER EDITOR to define an area in the survey area The Bordering dialog tells MULTIBEAM MAX what Border File to use and whether the Search and Filter settings should be applied inside the border outside the border or to all data Ignore Border during Phase 3 editing G Editing Data in Multibeam Max Phase One 66 e HYSWEEPO Processing Phase One editing includes several display windows You can view graphs representing your tide draft and sound velocity corrections and your heave pitch roll and heading values The tracklines will be displayed in the Survey window You can only view the Sound Velocity pitch roll and heading data The rest of the data may be edited in a limited way Click anywhere in the graphs The cursor points in the other windows will update to coincide with the new position You can use your mouse to reposition the cursor or use the arrow keys to scroll through your position points The information in the status windows pertain to the current cursor point position Corrections will be applied to your raw data as you advance to Phase Two editing a Tide and Draft Corrections Window
13. Profile Cel RawData Sweep Colors Wiggle Color Dots C Solid TIN Colx Code Based on Sonar Head S calir Scale ta Window f Scale to Enhbre Line M Autoscale Depth Elevation Himinn 51 0 LI avem 20 vw Show Active Filters Show Deleted Points Filter Options a DK f Color Settings in Multibeam Max The Colors Tab determines the depth color settings for all of the displays 3 View Options Survey Profile Cell Black Background Double width Graph Lines Depth Color Palette t Relief f Spectrum C Chart C Hypack Max Shoals Shoal Depth s Elevation Point Color Coding in Profile and Cell Windows None Depth Line Number Autoscale Depth Elevation ha irm o hd eir feo a Show Active Filters Show Deleted Points Filter Options Apply Cancel Choose between a black and white background and between single or double lines in the graphs You can from a number of color palettes to color code the soundings 7 04 7 04 e Relief uses the color schemes common to relief maps e Spectrum uses a rainbow color spectrum e Chart uses the color schemes common to nautical charts e HYPACK MAX uses the HYPACK color settings e Shoals displays red where the soundings are shoaler than the specified Shoal Depth Point Color Coding in Profile and Cell Windows e None shows the data
14. REDUCTION programs These programs can be used as an alternative to the XYZ Reduction option in MULTIBEAM MAX Method MAPPER SOUNDING REDUCTION Input file Type SWP format Edited XYZ files XYZ format Edited single beam All format Output File Type ASCII XYZ or XYZ ID ASCII XYZ Matrix MTX Other Files Needed Matrix MTX No Plot Results Yes to the nearest active Yes to the nearest active Perpendicular to survey line survey line Planned Line Guaranteed No No No Overwrites in Plotting Sounding Selection Minimum Maximum range None average closest to cell center Speed Fast Not bad for all that it does Maintains Sounding Optional depending on Yes Location sounding selection Pleasing to the Eye Can be Beauty is in the eyes of the beholder Note XYZ Reduction in MULTIBEAM MAX produces the same results as MAPPER B Mapper Program The MAPPER program is a binning or gridding program It 1s normally used to reduce the volume of multibeam or multiple transducer 7 04 HYSWEEP Processing 89 data but it can also be used with single beam data You must make a Matrix file MTX A Matrix file consists of a rectangular area filled with individual cells The MAPPER program can save one sounding for each cell using the HYPACK MAX color scheme You may choose from the following Advantages e Disadvantages Minimum Maximum Average Sounding Closest to the Cell Center Maximum minus the Minimum
15. See Hysweep Survey windows coverage map window cross lines Beam Angle Test 81 reference surveys 81 cross sections data displaying Hysweep Survey 26 Multibeam Max 14 74 patch test 14 Data Adjustments program correcting offset errors 18 19 overview 18 procedure 18 data logger Hysweep Survey 35 36 DBL Distance from Beginning of Line Multibeam Max 49 depth mode Multibeam Max 47 48 49 65 depths corrected 42 48 correcting Multibeam Max 42 displaying Hysweep Survey 22 23 24 25 27 Multibeam Max 46 55 69 74 75 filtering See Also Sounding Selection programs Multibeam Max XYZ reduction Multibeam Max 43 52 60 61 presorting Multibeam Max 52 device drivers listing Hysweep Hardware 1 100 device settings displaying Multibeam Max 19 51 editing Hysweep Hardware 8 Multibeam Max 19 51 distance measurements Hysweep Survey 24 26 Multibeam Max 68 74 75 draft squat corrections applying Hysweep Survey 33 creating 7 04 Hysweep Survey See Also squat and settlement table displaying Hysweep Survey 22 Multibeam Max 64 72 editing Multibeam Max 64 driver setup dialog Hysweep Hardware 2 dual frequency data Mapper 90 echosounders multiple transducer offsets 7 types comparison 99 multibeam 98 99 multiple transducer 99 elevation mode Multibeam Max 47 48 49 65 elevations corrected 42 48 54 events displaying Hysweep Survey 22 40 Multibeam Max 72 examples Pat
16. Sidescan Display Has Highest Priority r Manufacturers Beam Coding High Quality Lower Limit Marginal Quality Lower Limit Show Bad Soundings L Apply Heave Pitch Roll Corrections and Apply Tide Corrections Select whether or not to apply these corrections to the multibeam soundings before display Black Window Background Select black or white window background As of this writing displays over a White background are pretty bad Side Scan Display Has Highest Priority guarantees every scan will be drawn to the Side Scan Waterfall window providing the clearest image possible If this 1s not checked logging data gets the precedence If your HYSWEEP Survey e 31 computer is fast enough it should be able to do both but it is your responsibility to check for complete data files Manufacturer s Beam Coding Assign as sounding quality based on quality codes received from the multibeam echosounder The Profile window color codes soundings based on quality high green marginal yellow bad red e High Quality Limit All soundings greater than or equal to this value are assumed good e Marginal Quality Limit All soundings less than this value are assumed bad e Show Bad Soundings Selects display of bad sounding data F Color Settings in HYSWEEP Survey The Multibeam Waterfall 3D Seafloor and Coverage Map windows all include an icon in their tool bars to access the s
17. Sounding It is extremely fast It can be used to judge the quality range per cell of the data It can be biased to select the data important to you If you go to plot it soundings may overlap You can move soundings if you elect to save the soundings at the center of the cell You may not plot soundings perpendicular to the planned line 1 Mapper Program Procedure The MAPPER Window 90 e HYSWEEP Processing E Mapper Nearest to Cell Center File Options Help X 1060869 Y 1075024 Depth 22 79 Check for a Matrix File MTX You will need one for the MAPPER program Details on making one if you do not already have one are found in the PREPARATION section of this manual Begin the MAPPER program by selecting PROCESSING SOUNDING SELECTION MAPPER If you are using dual frequency data set your file options Select FILE OPTIONS and select your options 7104 Matrix File Options Selecting the Data in your Matrix Data Loaded Only the current matrix data Load new data to the matrix Current matrix data merged with additional data 7 04 Sounding Selection Use Depth 2 Use Bath Open your Matrix File MTX by selecting FILE OPEN MATRIX and choosing the correct file from the file selection dialog that appears and click OK Set what data should be included in the matrix If you have chosen a filled matrix the Matrix Update dialog appears Ef Matrix
18. Upadakbe Load Soundings From M sirix Add Soundings to Matri f Yes C Ho Update sil Caralag File Lobe With ara Fie You have several choices Load Soundings Add Soundings To Matrix From Matrix Yes NO NO Yes and click the button corresponding to the type of the file where your data is currently saved to select from a file selection dialog Yes Yes and click the button corresponding to the type of the file where your data is currently saved to select from a file selection dialog If you wish to add more sounding data to the current matrix select FILE LOAD SOUNDINGS and choose the additional sounding files Once the data has been read into the Matrix it 1s displayed in the MAPPER window Set your mapping options There are several choices regarding the sorting and display of your data in MAPPER These options are detailed under MAPPER Options HYSWEEP Processing 91 7 Save your results by selecting FILE SAVE SOUNDINGS You can you to save the current selections to either an ASCII XYZ or MTX file 2 Mapper Options The Data Selections Window in MAPPER 92 e HYSWEEP Processing The Options menu provides a selection of dialogs where you can choose how your data is displayed These choices involve matrix properties depth colors and which depth is represented in each matrix cell a Mapper Data Selection Options Sounding Selection specifies which item will be displayed and s
19. Width for Gridding 0 76 MByt Matrix Rotation 0 76 pes d Mapper Matrix Fills The Options menu also enables you to 7 04 HYSWEEP Processing 93 Fill Matrix Dialog Matrix Filled with Uniform Depth e Erase the data from a filled matrix by selecting OPTIONS CLEAR MATRIX e Fill your matrix with a user defined depth by selecting OPTIONS FILL MATRIX The Fill Matrix dialog will appear for you to set the depth Click OK and the results will be drawn to the Mapper screen Fil D epth siaal alsin stad MA E8352 3 Mapper Statistics The Statistics Window in MAPPER 94 e HYSWEEP Processing Statistics provides a plot of the Number of Data points vs Depth Range per Cell ES Statistics x Ave Range 0 48 Hin Range Std Deviation 0 45 Max Range Range HM ax Min Distribution Average 1 5td Deviation of Cells Dxf Output tells the MAPPER program how to construct the DXF Output Polylines It can be lines along the Matrix length width or both 7 04 7 04 C Sounding Reduction Program The SOUNDING REDUCTION program reads your XYZ data file and eliminates points where the surroundings are almost the same based on user defined criteria The results are saved in XYZ format by default to the project s Sort directory 1 Sounding Reduction Procedure l Select PROCESSING SOUND SELECTION SOUNDING REDUCTION The Soundings Reduction
20. by double clicking the object of interest and object size is measured by dragging the cursor from point to point To access this window select VIEW MULTIBEAM WATERFALL from the main HYSWEEP SURVEY menu Display settings may be set by selecting VIEW OPTIONS then Range Settings and Multibeam Display E QC Test Window HYSWEEP Survey The QC Test window shows the results of one of four HYSWEEP amp quality control tests 24 e HYSWEEPO Processing 7 04 e Depth change by Beam Shows the depth change of each beam over a specified number of pings Faulty beams and incorrect attitude compensation show up clearly in this test e Standard Deviation by Beam Approximates the standard deviation of each beam over the last 500 pings using the method of Eeg May be used in flat areas to assess overall sounding precision e Multibeam vs Single Beam Compares multibeam nadir with single beam Useful for validating the multibeam sonar against the more traditional and more widely accepted as correct single beam echosounder Multibeam ys te GC Test Multibeam s Single Beam Single Beam Comparison Multibeam Madir 23 56 Histogram Single Beam 23 69 Dufference 0 13 Samples FOU Ave Difference 0 01 Std Deviation 0 20 40 oL Multibeam Single Beam Difference e Multibeam Sounding Overlap Provides multibeam overlap statistics within matrix cells May be used in flat areas to validate multibeam system calibration All of
21. by the box You can Change the heave value for the defined time Enter a new value in the Heave field This could be useful where the survey vessel had not quite settled into the regular pattern centered over the 0 line when the logging began Since heave generally averages out to approximately 0 using this feature to edit the heave for that segment to 0 may improve your accuracy Remove sounding data logged during the defined time by checking Delete soundings within time range Heave correction applied as you advance to Phase Two is the average of heave at ping and receive time different for each beam c Pitch Roll and Heading Window in Multibeam Max The Pitch Roll and Heading Window shows the Pitch Roll and Heading in time series Comparing the Heading graph with the Navigation graph can show a gross error in gyro calibration The graphs show a faulty sensor readily and give a good idea of wave dynamics at the time of the survey Pitch Roll and Heading Pitch Roll and Heading Graphs Line Azimuth Af el edel elo Position the cursor over any of the graphs The Status Bar will display the Line Azimuth Time and the value in the graph indicated To view the average heave pitch and roll 7 04 HYSWEEP Processing 69 Block Click and drag a box around the portion of the data you want to know Average about and click the Block Average Icon The Average dialog will los display the number of s
22. in black and white e Depth shows the data in color settings according to the depths e Line Number uses different colors to differentiate between survey lines The colors repeat every 7 lines g Other View Options in Multibeam Max A few options are included at the bottom of the dialog regardless of which tab has been selected Autoscale Depth Elevation can be selected to automatically set the depth range in the Sweep Profile and Cell windows according to the depth range of the data The legend in the Survey window is also scaled to fit these settings To manually set the scale of these windows deselect this option and enter the minimum and maximum depths elevations that you want to use Show Active Filters displays yellow X s during phase two and three where data points are out of the range allowed by the search and filter options Show Deleted Points displays red X s during phase two and three where data points have been removed Filter Options brings up the Search and Filter Options dialog See the section on Search and Filter Options Apply enables you to preview the effects of your settings on the window displays before the dialog is closed 7 Overlaying a Channel Plan File in Multibeam Max Select FILE OVERLAY CHANNEL PLAN to display Channel Plan files CHN from ADVANCED CHANNEL DESIGN or CHANNEL DESIGN MAX in the Survey Sweep and Profile windows of MULTIBEAM MAX It can be helpful to us
23. limits 2 HYSWEEP Survey Measurements Updated about once a second Depth Nadir beam depth in working units Time Event Latest sounding time and event number Time will not update 1f no soundings are being received Tide Corrections Latest tide correction from Hypack Survey Draft Corrections Latest dynamic draft correction from Hypack or from the HYSWEEP squat amp settlement table Heave Latest heave in work units positive upward 22 e HYSWEEPO Processing 7 04 7 04 Roll Latest roll in degrees positive port side up Pitch Latest pitch in degrees positive bow up Heading Latest ship heading Easting Northing Latest grid position from HYPACK SURVEY B Profile Window in HYSWEEP Survey Profile Window The Profile window shows sweep profiles in various ways e aprofile line e the beam pattern shown e abizarre wave front display Only the profile line is available with multiple transducer systems The view is looking forward from behind the sonar ke Profile Window Beam Pattern x Swath width This display is limited to 75 beams and the swath width 1s displayed in the status bar Note the color of the beams The coding is such that blue indicates good data yellow marginal and red bad The relationship between color and beam quality code is established under VIEW OPTIONS Other To show the Profile Window select VIEW PROFILE WINDOW from the HYSWEEP menu Display se
24. roll and heading window See Multibeam Max windows pitch roll and heading window playback Hysweep Survey 21 22 40 PLN files Multibeam Max 59 point editing Multibeam Max 70 76 positions boats correcting Data Adjustments program 18 displaying Hysweep Survey 22 26 30 Hysweep Survey 26 Multibeam Max 68 72 positions cursor Hysweep Survey 23 24 26 Multibeam Max 64 74 75 positions files matrix files Multibeam Max 73 targets Hysweep Survey 39 7 04 positions soundings Mapper 86 89 90 Multibeam Max 53 68 69 74 Multibeam Max XYZ reduction 78 79 80 Sounding Reduction program 86 presort Multibeam Max 52 processing sequences multibeam data 41 profile window Hysweep Survey See Hysweep Survey windows profile window Multibeam Max See Multibeam Max windows profile window project information displaying Multibeam Max 52 77 PWC File Splitter 45 QC tests Beam Angle Test 81 Hysweep Survey QC test window 24 Single Beam Test 83 QTC ISAH data 45 quality control test window See Hysweep Survey windows quality control test window settings 22 quality data displaying Hysweep Survey 32 Multibeam Max 68 saving Bar Check 28 quality filter Multibeam Max 61 quick mark 39 raw format files Hysweep Survey 21 Multibeam Max 43 46 read filters Multibeam Max 52 read parameters Multibeam Max See Multibeam Max settings read parameters reduction See sounding selection programs re
25. these tests make some approximations and work better over a flat surface An example of the multibeam vs single beam test is shown in the screen capture The problem with this test over variable bottom terrain is that the wide angle single beam transducer sounds a wider area per ping than the narrow nadir beam resulting in a slight shoal bias for the single beam To access this window select VIEW QC TESTS from the main HYSWEEP SURVEY menu Set display settings by selecting VIEW OPTIONS then qc tests F Coverage Map and Cross Section Windows in HYSWEEP Survey The Coverage Map views the survey area from above It has a number of features and options e Multibeam and side scan coverage as scan lines e Color coded matrix display showing 1 minimum depth shown in the screen capture 2 maximum depth 3 average depth 4 overlap difference and 5 1x 2x multibeam coverage e A tool bar for 1 cutting cross sections 2 panning and 3 zooming Eeg Jorgen On the Estimation of Standard Deviation in Multibeam Soundings The Hydrographic Journal No 89 July 1998 7 04 HYSWEEP Survey e 25 e Distance and color scale bars e Boat tracking e Contacts may be targeted by double clicking the object of interest e Object size is measured by dragging the cursor from point to point e F11 toggles scrolling on off and is useful to freeze the frame in case something interesting shows up Moving the cursor across the window disp
26. you may mark 2 Marking Targets during Survey Target Properties Dialog in Side Scan Survey HYSWEEP SURVEY provides complete targeting support Mark a target in the real time displays using any of the following methods e Double click the object in the Side Scan Waterfall or Side Scan Coverage Map and the target is marked By default a Target Properties dialog will appear for you to edit the file entry You can avoid this by clearing the Show Target Editor check box E Targets CAHYPACKPROJECTSSAMPLE SIDESEAN Description 16 06 37 Easting 52598808 00 Northing 47836968 00 Depth 0 00 Show Target Editor Whenever a Target is Marked Delete All Delete e Select TARGETS QUICKMARK F5 to mark the position of the boat origin 3 Editing Target Properties 40 e HYSWEEP Processing The Target Edit dialog is shown whenever a target is marked or when you select TARGETS EDIT TARGETS unless the box at the lower left is checked This enables you to modify the target properties by selecting a target from the list on the left and revising the data on the right 7 04 7 04 Target Edit Dialog Playback Controller Playback Search Parameters ke Targets CAHYPACKMAXXSPROJECTSSHYSWEEP SIDE Miel ES Description fi 2 27 hhj Easting 2469846 23 Northing 1 571827 66 Depth 28 05 Show Target Editor Whenever a Target is Marked Delete All Delete VII Playback Ec Playback Cont
27. 76 K Quality Control Tests in Multibeam Max ccccccccccccccccceceeeeeeeeeeeeeeeeeeeesseeseeeeaaes 82 HL Chppues Survey Poles uiii Iri ie or EE e IEEE a a Coats ene E RUE ioco seiten lee eec eee 87 IV Sounding Selection Programs for Multibeam Surveys 88 A Comparison of Sounding Selection Methods for Multibeam Doata 89 B Mapper Progra nisse E bei tds iei itn RES oto bd Penes depu due EacR 89 e Sounding Reduction Pro9ratiz uet eh titi d n uy estin pa ER MA Ui kux n usse ev edes at ennh 95 4 MULTIBEAM APPENDIX 99 I Multibeam Survey Advantages eee Leere eee eee eere ee eene eene ess etate eee te 99 A SWEEP SONAL VSICEDS doris T A ER 100 B Devices Supported in HY SWEEP Hardware eeeeeeeeeeseseeeeeeeeeennrnne 102 1 HYSWEEP Hardware 7 04 HYSWEEP HARDWARE is used to install those devices that are specific to multibeam surveys The procedure in HYSWEEP amp HARDWARE is similar to that of the HARDWARE program l p iS Open HYSWEEP HARDWARE by selecting PREPARATIONS HARDWARE HYSWEEP HARDWARE Select your devices Specify the driver and communication settings Test the communication between the devices and your survey computer Enter measured offsets Calibrate your system and enter your offsets Exit HYSWEEP amp HARDWARE by clicking Close Your hardware settings will automatically be saved when you
28. Average The average of the depths in the cell Sigma The standard deviation of the depths of the cell Median The median depth value of the cell Mode The mode depth value of the cell The Depth Histogram shows the percentage of readings at each depth reading The bin size 1s defined below the graph 4 File Information in Multibeam Max File Information Display The File Information can be displayed during phase three editing by clicking the icon in the Multibeam Max shell It presents a series of statistics about the XYZ file currently loaded to Multibeam Max File Information Starting zz Count 373498 Points Removed i 3b44 Percent Removed 3 65 Removed Manually 0 003 Removed Automatically 3 58 Matrix How Count Column Count fi 48 Cell Count B 460 Ave Points Cell 35 3 Max Depth Min Depth 29 3 Average 5 Saving Edited Multibeam Survey Files FILE SAVE displays the File Save dialog to provide the choice to save your data 80 e HYSWEEP Processing in the HS2 format to the project s Edit directory using the same name as the open file To XYZ format to the project s Edit directory if no reduction is done or Sort directory if you choose XYZ Reduction using a name that you will choose If you save to XYZ format you may choose to save all of your edited data or only what is visible in the Survey Window You may also choose to perform a data reduction in the same manner as the MAPPER program
29. Block Edit your tracklines You may also drag the cursor to measure the distance and azimuth between two points To Point Edit you can Click the cursor point on the point you wish to delete and click delete point icon on the MULTIBEAM MAX shell Click the eraser icon on the Survey window The cursor becomes a small square Center the cursor over the point or points you want to delete and right click To Block Edit put a rectangle around a group of points then delete all points inside or outside the block l Select a block of data points by clicking the block tool button and dragging from one corner to the diagonally opposite corner If you re unhappy with the results just try again 2 Edit the Data by clicking the Delete Inside Block I or Delete Outside Block O icon H Editing Data in Multibeam Max Phase Two When you have completed Phase One advance to Phase Two by selecting FILE CONVERT RAW TO CORRECTED The Phase One displays will be closed and the Sweep and Survey Information windows will appear Search and Filter Options are used in Phases Two and Three of editing your multibeam data MULTIBEAM MAX can then search for matrix cells with data outside of these user defined limits HYSWEEP Processing e71 Manual Editing 1 Set your Search and Filter criteria 2 Select EDIT FIND NEXT F3 MULTIBEAM MAX will systematically scan the matrix for cells with data outside of the Search and Filter limits Th
30. F to HSX File Converter AIF to HSX File Converter Settings Use Alternate Position Ignore Count File File Header Sonar Channels Bathymetry Channels Position Units HMultibeam Type it Beams Survey Data Multibeam Records Position Records Heading Records Heave Roll Pitch Records Input your Settings Alternate Position XTF files have readings from mounted sonar and towed sonar If you have loaded an XTF file and are not getting the correct reading select the Use Alternate Position option Ignore Count XTF files often have a number of records that are not part of the survey data Input the number of records Max should ignore in each record before reading the survey information Select your survey files by clicking Select Files and Convert and choosing the files for your conversion You can select more than one file using the CTRL or SHFT keys as in Windows File statistics will be displayed in the lower part of the dialog Run the conversion by clicking Open For each selected file and HSX file will be created with the same name but with the HSX extension and saved to the same directory The converter will also create a xtf LOG file listing the converted files ready to load into the 2 PWC File Splitter The PWC File Splitter splits the data in raw or edited files containing QTC ISAH data It creates two new file sets and stores them to the same folder as the original data One data se
31. Filter Window iB Filter The Filter Window button removes all soundings displayed in Ee Window the window that are outside of the Search and Filter criteria Icon Undoing an Editing Procedure Undo Icon Don t panic if you edit or filter your data then discover you ve done it wrong You have some options during Phase Two and Three editing e Click the Undo icon in the MULTIBEAM MAX shell to reverse the last operation e If it was a Point Edit set the view option Show Deleted Points put your cursor on the point you want to restore and select EDIT UNDELETE POINT or Shift Del e Select EDIT UNDELETE and the Undelete Options dialog will appear You can reverse deletions of all soundings removed manually removed automatically or that fall within a user defined depth range Make your choice click Undelete and the points will be restored accordingly Undelete Options Undelete Options Dialog C All Soundings Deleted Manually C All Soundings Deleted Automatically Minimum Maximum m Undelete Cancel 74 e HYSWEEP Processing 7104 b Sounding Information Window in Multibeam Max The Sounding Information window displays data about the point at which Corrected Depth the cursor is positioned in the Sweep Window 45 75 Status Sweep Beam Quality Time 10 53 38 730 Event I x 29436819 Y 37879893 Slant Range 161 60 Offset 65 81 Beam Angle 7556 Heave 403 Holl
32. HYSWEEP Processing Open the Search and Filter Options dialog by selecting EDIT SEARCH AND FILTER OPTIONS Ctrl F MULTIBEAM MAX will use these settings in Phases Two and Three of editing multibeam data You may search your entire data set or confine the search to a area defined by a Border File The Bordering Tab tells MULTIBEAM MAX whether these search and filter settings should be applied inside the border outside the border or to all data Ignore Border a General Filters in Multibeam Max Options in the General Tab enable you to search and filter data based on certain user defined limits on sounding values beam angles quality readings and bottom topography 7 04 Search and Filter 3x Search and Filter Options Options Dialog Min Depth Max Depth Bears Edit Phase Par Angle Limit Starboard Angle Limit Port Offset Lirit Starboard Offset Limit Spike Limit v Guality Limit Filter Overhang and Undercut Topography Use Hysweep Survey Limits Humber of Filter Passes Run Filters Reset All Ok Begin Search Apply Cancel The Min Depth Elevation filter Phase 2 and 3 deletes all soundings shoaler than the limit The Max Depth Elevation filter Phase 2 deletes all soundings deeper than the limit Beams Phase 3 enables you to filter out all readings from selected beams List beams to be omitted The numbers should be space delimited Port and Starboard Angle Limits Phase 2 dele
33. IN Model in the Final Products chapter ll Multibeam Max Program MULTIBEAM MAX primarily reads raw or edited sounding files containing multibeam and multi transducer data If you are using raw data it applies tide and ray bending corrections to the soundings to find corrected depth or elevation MULTIBEAM MAX displays all measurements graphically and provides a number of editing methods When editing is complete the program saves the corrected and cleaned data for further work in the Sounding Selection and Final Product programs You must have a HYSWEEP key for your printer port to run this program MB Max Edit Phase 2 HS _RAWO923 LOG 0928 tid File Edit View Tools Help jJ gt la as d F Eil 1 001 1053 HSX 44 e HYSWEEPO Processing Multibeam Max Shell The title bar of the MULTIBEAM MAX shell displays which phase of the 3 phase editing process you are currently working in and the files you have loaded to the program Most procedures initiated from the many display windows are initiated with the click of an icon If you are not sure which icon is referred to in the procedures of this manual hold the cursor over each button and its name will appear 7 04 7 04 The file currently being displayed is shown in the field to the right If you have loaded a catalog file you can scroll through the files in the catalog by using the left and right arrows on the shell Typically you would edit the first li
34. RDWARE program In the HYSWEEP HARDWARE program Enter the Final Offsets value from the PATCH TEST dialogs to the device offsets in the HYSWEEP amp HARDWARE program Select Hypack Survey to apply the Latency and the echosounder to apply the roll pitch and yaw values Note For devices that are loaded through HYPACK amp HARDWARE but feed information to HYSWEEP SURVEY change the offsets in HYPACK HARDWARE and in HYSWEEP HARDWARE For example for a GPS e In HYPACK HARDWARE select the GPS and adjust the Offsets dialog e In HYSWEEP HARDWARE select HYPACK SURVEY and adjust the antenna offsets in the Offsets Tab Adjusting Hardware Offsets in Hardware f Latency Eme sec oon Cancel Enter sensor s offsets relative to Help boat ference pork Starboard mrt fo 00 Taw FI fo 00 Foreeard mT T EI Pitch 7 T 00 Heaghit mft o 00 Fol Py fo 00 7 04 HYSWEEP Hardwaree 17 Adjusting Hardware Offsets in HYSWEEP Hardware te Hysweep Hardware Setup Hypack Survey Equipment Connect COM Test Offsets Antenna Offsets Position Enter Device Offset From Boat Reference Point Center of Mass The Vertical Offset is Positive Downward and Measured From Waterline Starboard Forward Vertical Rotation Enter Device Rotation from Forward Y aw and Vertical Roll and Pitch Y aw rotation follows azimuth clockwise rotation is positive Bow up is positive pitch port s
35. Survey 39 editing Multibeam Max 60 loading Hysweep Survey 39 Multibeam Max 60 naming Hysweep Survey 32 Multibeam Max 60 unloading Hysweep Survey 39 targets displaying 39 marking Hysweep Survey 23 24 26 39 Multibeam Max 60 positions Hysweep Survey 39 Multibeam Max 60 target properties 39 quick mark Hysweep Survey 39 selecting Hysweep Survey 39 settings labels 39 60 target properties 39 TGT files Hysweep Survey 39 Multibeam Max 60 TID files Multibeam Max 43 49 50 HYSWEEP Processing e111 Tide Adjustments program See tide corrections tide adjustments tide corrections applying Hysweep Survey 33 Multibeam Max 43 48 49 80 displaying Hysweep Survey 22 Multibeam Max 64 72 editing Multibeam Max 65 merging with heave 54 reference surveys 80 RTK Real Time Kinematic tide corrections settings 53 tide files selecting Multibeam Max 43 48 50 time displaying Hysweep Survey 22 40 Multibeam Max 72 in file names 39 time tags correcting Data Adjustments program 10 18 TIN models displaying Hysweep Survey 23 24 topography overhang 61 undercut 61 tracklines displaying Hysweep Survey 26 112 e Index Multibeam Max 55 68 editing Multibeam Max 68 undelete options dialog See Multibeam Max settings undelete options undercut topography 61 VEL files Multibeam Max 51 XTF files Hysweep Survey 21 XTF to HSX File Conversion Tool 44 XTF to HSX File Conversion To
36. a ensonifies translates to illuminated by sound it is clear why we speak of full coverage surveying 100 HYSWEEP Processing 7 04 Map view of Sweep and single beam transducer boats The Sweep boat sounds an area the single bean boat sounds a line So how is it that a sweep boat can sound off to the side There are two methods supported by HYSWEEP software and now we get a little subtle with the terms The figure below shows what we call a multi transducer system The separation of the transducers allows for sweep coverage even though the sonar beams are directed straight downward Typical Multi Transducer System The second type is what we call multibeam The sonar beams originate from the same approximate location with sweep coverage attained through varying beam angles Typical Multibeam System There are benefits and drawbacks associated with each type Multi transducer boats have a constant sweep width usually referred to as coverage regardless of water depth making them well suited for work 7 04 HYSWEEP Processing e101 Multibeam Sonar Tilted to survey a Jetty in very shallow water Note that the coverage 1s approximately 60 feet typical for boats working on the Mississippi River Boats such as this are not suitable to rough waters due to the lengthy booms on which the transducers are mounted Multi transducer systems are relatively simple in theory and operation just 10 or 12 or w
37. ame manner as for the single head system e To test pitch locate and area with a sloping bottom and create a set of three 200 to 300 foot planned lines over this area running with the slope and spaced at a distance equal to the depth in the shallow end of the Patch Test area Run the lines at normal survey speed alternating directions e To test yaw using the same lines as for the Pitch test run them at normal survey speed but all in the same direction 3 Calculating Offset Adjustments with Patch Test 12 HYSWEEP Hardware Offset adjustments can be calculated with the PATCH TEST in MULTIBEAM MAX Note You must be in Phase 3 ofthe MULTIBEAM MAX editing process Typically you will load two lines of raw test data at a time to MULTIBEAM MAX according to which offset you are testing If you have a dual head system it also depends on the head for which you are testing Use MULTIBEAM MAX to apply your sound velocity and tide corrections and remove all spikes and outliers After you have completed phase 3 of the MULTIBEAM MAX 7 04 7 04 editing run the PATCH TEST from the MULTIBEAM MAX Tools menu You can use files that have been previously edited in the old HYSWEEP EDITOR or have gone through a sounding reduction program which saves its results in XYZ format MULTIBEAM MAX can read the following files e HSX files raw multibeam data created in HYSWEEP SURVEY e HS files multibeam files that have been e
38. amples and the average heave pitch and roll values included in the time span defined by your box e x Average Dialog ni x Samples 2547 Heave 0 00 Pitch 0 32 Rall 0 32 Pitch correction is applied at ping time the same for all beams and roll correction is at receive time different for each beam as you advance to Phase Two d Sound Velocity Profile Window in Multibeam Max The Sound Velocity Profile Window shows up when you open a VEL file showing velocity variation with depth The average correction value from the profile and the sonar setting are shown in the status bar Sound Velocity Profile 4 Sound Velocity Profile Oy x Window Average 1470 43 Sonar 1452 00 Yelocity vs Depth 1460 00 1490 00 e Survey Window in Multibeam Max Phase 1 The Survey Window displays a map view of your data files It appears in phases one and three of the editing process The status bar shows the XY coordinates time and the QC statistics HDOP Number of Satellites and GPS Mode to help guide editing decisions 70 e HYSWEEP Processing 7104 7 04 Survey Window During Phase 1 Editing ed iF es le les Delete Point Icon Eraser Icon Block Tool Icon Delete In Out 3 Survey Window wepepe ARAR 294145 4 X 378755 9 Y 11 18 08 692 HDOP 1 0 Sats 7 GPS Mode 2 In Phase One you can Point Edit or
39. ap 22 30 multibeam vs single beam 22 30 settings 22 30 sound velocity correction 34 alignment device with vessel 10 all format edited Multibeam Max 49 angle limits Beam Angle Test 81 82 filters Multibeam Max 52 61 80 autosearch Multibeam Max 69 azimuths grid azimuth Multibeam Max 68 74 75 line azimuth Multibeam Max 67 beam angle display Multibeam Max 72 beam angle filters Multibeam Max 52 61 80 Beam Angle Test check lines 81 overview 81 procedure 81 reference survey 80 settings angle limit 82 bearing measurements Hysweep Survey 23 Multibeam Max 68 74 75 Side Scan Survey 26 block editing Multibeam Max 68 70 75 76 104 e Index boat shapes displaying Hysweep Survey 31 follow boat Hysweep Survey 31 Hysweep Survey follow boat 31 positions 26 tracklines 26 orientation 6 border files loading Multibeam Max 64 border tool Multibeam Max 71 75 BRD files Hypack Max 84 calibration tests Patch Test 8 15 catalog files naming 33 saving Hysweep Survey 37 cell window See Multibeam Max windows cell window centerlines loading Multibeam Max 50 channel templates displaying Multibeam Max 59 loading Multibeam Max 59 settings Multibeam Max 59 check lines Beam Angle Test 81 reference surveys 80 Single Beam Test 83 CHN files Multibeam Max 59 color settings Hysweep Survey 28 29 31 32 Mapper 91 Multibeam Max 58 7 04 COM Test 4 coverage map window
40. ar head enabling the helmsman to record soundings accurately on the survey line The HYSWEEP origin is typically the vessel s center of mass This 1s the pivot point for roll and pitch rotations and it 1s where the MRU should have been mounted The offsets for the sonar gyro MRU and the Antenna Offsets in the HYSWEEP SURVEY setup are all based on this point and are used with the raw positions received from HYPACK to calculate the sounding positions 7 04 Sample configuration for a dual origin Hardware Setup Hysweept Hardware rigin H RU at center of Hypackee Hardware ruin Multibean Sonar B Rotation Offsets in HYSWEEP Hardware GPS from HYPACK Use 0 0 0 Multibeam sonar Use 0 0 0 initially then find the true rotations with the Patch Test MRU Use 0 0 0 and calibrate the MRU to reset it s pitch and roll Zeros Gyro Use 0 0 0 and calibrate the gyro to true north C Latency in HYSWEEP HARDWARE Although latency is a lag time a negative time offset the convention is to enter latency as a positive number If you are preparing to enter a negative latency stop and re figure 1 GPS Latency GPSs are entered to your setup in HY PACK HARDWARE However in order for the position data to be recorded to the multibeam raw data you must install the HYPACK Navigation driver in HYSWEEP HARDWARE Enter Antenna Height horizontal offsets relative to the HYSWEEP origin You
41. ar heads tell MULTIBEAM MAX whether to use data from head 1 head 2 or both Select Head 1 if your echosounder has only one head This option is useful where two sonar heads are mounted in different places on the survey vessel 6 Click Start Test MULTIBEAM MAX will do the calculations to determine if any offset adjustments are necessary HYSWEEP Hardware e 13 MULTIBEAM MAX Roll Test MULTIBEAM MAX GPS Latency Test 14 e HYSWEEPO Hardware When the calculations are complete the results will be displayed The calculated adjustment will appear under Adjustment It will be used with the Initial Adjustment to calculate and update the Final Adjustment which is entered in the Offsets dialog in HYSWEEP HARDWARE You can view cross sections of your soundings and the results of the calculations in the graphs in the lower part of the window Roll GPs Latency Pitch Yaw Test Settings and Results Sonar Head Selection Angle Time Step 0 10 Adjustment Head 1 Number of Steps 21 Initial Offset i C Cell Size 5 0 Final Offset Depth Error Automatic Cross Section Vertical Adjustment 0 0 lt Previous Next gt Start Test Close Patch Test EI x Rol GPS Latency Pitch Yaw Test Settings and Results Angle Time Step 0 10 Adjustment Number of Steps 21 Initial Offset Cell Size 5 0 Final Offset Cross Sections Patch Test Result Depth Error DP aaa dad aa laa nh aa alt 12 0 420 MMMMMMe
42. aved to file It enables you to specify what information is displayed Minimum Maximum Average Closest to Cell Center or Maximum minus Minimum and if it is saved in its actual position or at the center of the cell The sounding Closest to Cell Center and maintaining the actual position will give you the most accurate volumes calculations Most of the items are self explanatory E Sounding Grid Sounding Selection Maximum f Range Max Min Average Nearest to Cell Center C Strikes Dra Strike Basis Dells f amp Depth C Elevation Pasitionin Level Use Actual Y where Possible F Ja gg Use Cell Center Y miia Strikes enables you to save and display only soundings that are above or below a user specified level It does not save the sounding but saves the difference between the sounding and the specified level Draw lets you specify whether to draw the matrix presentation screen as solid color filled cells or a wire mesh pattern Positioning enables you to save the data in its actual position where possible or in the center of the cell When you save the data in the center of the cell it moves the data not always a great thing to do Strike Basis specifies whether strikes mentioned above should be based on the amount the depth is less than the strike level Depth or the amount the depth is deeper than the strike level Elevation Level is the strike level 7104 If
43. ch Test 15 Sounding Reduction 95 file information Multibeam Max 77 file options dialog See Multibeam Max settings file options fill options dialog See Multibeam Max settings tide and draft corrections Multibeam Max heave corrections filters Multibeam Max 53 59 64 follow boat Hysweep Survey 31 full coverage surveys See multibeam surveys GPS calibrating Patch Test 10 offsets position 6 gyros calibrating Patch Test 10 offsets 6 HYSWEEP Processing e105 H2S files Hysweep Survey 37 Hardware program settings heading devices 2 offsets 9 pitch 9 saving 17 yaw 9 heading devices See yaw heading vessels correcting data Multibeam Max 19 Data Adjustments 10 displaying Hysweep Survey 22 Multibeam Max 67 72 measuring Multibeam Max 51 settings Hysweep Hardware 2 heave correcting data Hysweep Survey 31 Multibeam Max 54 65 displaying Hysweep Survey 22 Multibeam Max 57 65 72 induced 54 merging with tide 54 heave drift alarm 30 heave window See Multibeam Max windows heave window HS2 files Multibeam Max 77 HSX files Hysweep Survey 33 37 XTF to HSX File Conversion Tool 44 Hysweep Hardware COM Test 4 overview 1 procedure 1 selecting devices 1 See Also device drivers settings connect 2 driver setup 2 editing 8 heading 7 latency 5 7 network connections 3 106 e Index offsets 7 5 8 9 10 pitch 7 8 9 roll 7 8 yaw 6 9 Hysweep Survey keyboard c
44. ck Logging Options from the Data Logger form The Logging Options dialog will appear Set your options for logging survey data to files Logging Options E Logging Options Window r Sidescan Legging Disabled C Binaty Hoe Fama v Bit Compression ASUI Hypack 8 3 Compatible Not Valid sth Atlas Simrad or Seabman Systems Mot mets a HYSWEEP Survey e 37 File Info Information used to name data and catalog files When running HYSWEEP amp SURVEY with MAX the project name and logging folder are pre selected and unchangeable Record Method e ASCII HSX Format Selects ASCII format with full support of HYSWEEP SURVEY features e Binary Datagrams HS2 format Selects the binary format with full support of HYSWEEP SURVEY features e ASCII HYPACK 8 9 Compatible Selects the ASCII format used by HYPACK 8 9 SURVEY This format should only be selected 1f recorded files are to be processed with older versions of HYSWEEP post processing or 3rd party software that does not read the updated HSX format Atlas Simrad and Seabeam systems can not support this option Side Scan e Logging Disabled Check this if you wish to view side scan in real time but not log it to file e 8 Bit Compression By default HYSWEEP amp SURVEY logs side scan in 16 bits Select 8 bit compression to cut the side scan data volume in half with some loss in image resolution It s a judgment call on your part whether
45. ck Tide Correction Use Hypack Heading as Gyro Ill Connection Information in HYSWEEP Hardware 2 HYSWEEP Hardware Click the Connect tab to access device communication settings Connection settings are required for each serial or network device serial or Network connection options are included in this dialog according to your device Drivers that read their data from Shared 7 04 Memory and the Analog Sidescan driver require no connection settings Hysweep Hardware Setup a E loj x HYSWEEP HARDWARE Setup Serial Connections IO0 Enabled Ignore Checksum Timeout Interval Seconds Record Raw Messages r Serial Connection Port Data bits Baud rate x Stop bits Parity Read From File Close Help About d e Enabled in the upper left corner This selection allows devices to be temporarily removed from the configuration without losing the device settings e Ignore Checksum is not recommended but there are situations normally testing where the checksum is wrong but the data 1s good e The Timeout Interval determines how long after the last data received from the device that the device alarm turns from green to red e Record Raw Messages saves the original data string as it is read from the device into the raw data file Binary data 1s output in hexadecimal format Note The interval for the Nav MRU Gy
46. d Reduction Level 10 Run a second calculation with the parameters of Maximum Distance 192 and Reduction Level 20 Save the results of the second calculation to Dam7000b r xyz in the same directory Solution l Select PROCESSING SOUND SELECTION SOUNDING REDUCTION from the Main Menu The Soundings Reduction window will appear 12 Soundings Reduction C AHYPACKNProjectskdamAE di E3 z u E TET TE i sf thax Distance Jw io i T bikri Eng n e f IE UIEE HIE TE i T1 J T P E FFPUIIPITI r PIB IIT oP TP z Arm Medien l Tm nmi l du A tut sz 4 re n he EF Er carm CIOL Ll Vel ole Vir Aer Fr Tried gs Ir TOIT my ee me a Er l Arum it In c I peur partu nac Tr Bri i rb TW PITE 7 z IL Hier o LLL Fr l 2 Select FILE OPEN and choose Dam7000b xyz in the HYPACK PROJECTS DAM EDIT directory The number of Input Points 721989 will be displayed under Reduction Status If Smart Max Distance is selected the Max Distance will be 192 HYSWEEP Processing e97 3 Enter your Reduction Parameters Enter Max Distance 300 and Reduction Level 10 The SOUNDING 25 Soundings Reduction C HYPACK Projects dam E di REDUCTION Window After the aa E E Reduction uer um Calculation EI UEM 4 Click FILE RUN REDUCTION The reduction will be calculated and the related statistics will be displayed on the right hand side of the screen The Results of the Sec
47. d data quality Data is logged XTF format then processed through MULTIBEAM MAX The playback mode replays HYSWEEP SURVEY files as well as multibeam files logged by HYPACK 8 1 8 9 giving the same view seen on the boat The HYPACK and HYSWEEP amp SURVEY programs run simultaneously with HYPACK providing navigation and single beam data collection and HYSWEEP providing the multibeam features l Hysweep Display Windows There are several display windows which may be displayed through HYSWEEP for real time monitoring of your data collection In addition to those discussed in the following sections HYSWEEP SURVEY also includes the Side Scan Waterfall and Side Scan Signal windows which are described under SIDE SCAN SURVEY Most HYSWEEP windows have a tool bar at the top providing shortcuts to window configuration Pass the mouse pointer over a tool to see a hint as to what the tool does Tool bars are toggled on off with the F10 key All of HYSWEEP amp SURVEY s windows can be resized and moved around the screen retaining it s size and position until changed VIEW TILE WINDOWS will arrange the currently open windows in a manner that attempts to optimize your viewing in each window A Main Window in HYSWEEP Survey The main window consists of a menu some indicators and some measurements It can be resized to show only items of interest and will retain the size on subsequent program runs 7 04 HYSWEEP Su
48. d north MRU Offsets Applies to devices that measure heave pitch and roll physical location and orientation of the box Sonar Head 1 and 2 Applies to multibeam sonar physical location and orientation of the sonar head Diagram displays a visual representation of your hardware setup in the Boat Reference dialog Describe the size of your vessel by entering its Length and Width The origin defaults to the center of your vessel based on the specified Length and Width Reposition the origin by entering offsets of the origin from that point and the crosshairs on the diagram will shift accordingly The Boat Reference dialog reads the offsets information lists them under Device Positions and when you select the device under Units plots them on the boat diagrams Boat Reference AY Boat Reference IEG Sa Device Positions Length Starboard GPS D MRU 10 Head 10 a Head 2 0 TEN Forward Starboard jo EE MAU 9 Width Units Head 1 10 Iw GPS Head 2 0 I MAL Vertical Vv GPS 30 Sonar Head 2 MRL O Head 1 0 ELM Head 2 0 A Position Offsets in HYSWEEP Hardware 6 e HYSWEEP Hardware In multibeam surveys HYPACK HARDWARE and HYSWEEP HARDWARE typically have different origin points The HYPACK origin is typically the sonar head The Helmsman Displays use HY PACK Offsets for the positioning of the boat In SURVEY the Left Right Indicator will therefore be based on the position of the son
49. dited in MULTIBEAM MAX e SWP files multibeam files that have been edited in the HYSWEEP Editor e XYZ format ascii files typically saved from a sounding selection program To Run the PATCH TEST 1 Run one pair of test lines roll latency pitch or yaw through MULTIBEAM MAX 2 In phase 3 of MULTIBEAM MAX start PATCH TEST a If you want MULTIBEAM MAX to choose the cross section on which to base the statistics select TOOLS PATCH TEST The PATCH TEST will appear displaying the selected data and an Automatic Cross section label In this case the cross sections will be positioned as follows gt Roll Transverse to the survey lines at their mid point gt Pitch and Latency Directly under the trackline gt Yaw mid way between the tracklines b If you want to choose the cross section on which to base the statistics yourself click the wrench icon in the Survey window then define the cross section by dragging the cursor across the data in the Survey window The PATCH TEST will appear displaying the selected data and an Manual Cross Section label The PATCH TEST is a 4 tabbed dialog one tab for each offset tested 3 Select the tab that corresponds to the sounding lines you selected If you selected the lines to test roll select the roll tab 4 Each tab has suggested settings for the Angle Time Step and Number of Steps You may enter new values if you wish 5 If you are using a system with two son
50. e perpendicular to a bank Then run the line twice in the same direction once at maximum survey speed and again as slowly as possible It doesn t matter whether the line 1s run up slope or down slope Choose an area where the current is slow to minimize crabbing and make it easier to stay on line Errors in pitch and yaw angles cancel out e To test pitch run reciprocal survey lines across the bank at normal survey speed e To test yaw create a second planned line parallel to the latency and pitch line and offset by channel depth Run each of the parallel lines in the same direction at normal survey speed b Dual Head Collection Pattern The data collection pattern for a dual head multibeam system is a little different than for the single head system in order to overlap the soundings and Patch Test for head 1 and head 2 separately The data collection pattern for a dual head multibeam system is a little different than for the single head system in order to overlap the soundings and Patch Test for head 1 and head 2 separately HYSWEEP Hardware e 11 Roll data Yaw Y Latency L Pitch P Sthd 1 8 Port2 Sthd 2 Port 3 e To test the roll angle locate an area where the bottom is smooth and flat Create a set of three 200 to 300 foot planned lines over this area spaced at a distance equal to the depth of the Patch Test area Run the lines at normal survey speed alternating directions e Test latency in the s
51. e Point per Cell option e Inthe XYZ Reduction Tab choose the value you want saved to each cell as well as the position of the sounding within the cell We recommend using the actual position of the sounding for accuracy s sake K Quality Control Tests in Multibeam Max 82 HYSWEEPO Processing Two QC tests are available in MULTIBEAM MAX The Beam Angle Test estimates multibeam depth accuracy at various angle limits using a Reference Surface The Single Beam Test compares multibeam to single beam data 7 04 7 04 1 Creating your Reference Surface Perpendicular Reference Survey Lines The Reference Surface is created by a small test survey over a relatively flat bottom the center of a dredged channel provides good results A flat bottom is chosen to minimize the contamination of the depth accuracy test by position error Position specs are much looser than depth specs Run the survey at low or high tide to decrease potential for errors due to changing tide or water conditions 1 Use the LINE EDITOR to create your survey lines No template information is needed for this process Eight survey lines are run one set of four parallel lines separated by water depth and another set of four run perpendicular to the first set providing 400 coverage 2 Use the MATRIX EDITOR to create a Matrix File to border the reference area reference mtx Align the matrix edges with the survey lines and specify the cell dimensions t
52. e check lines in MULTIBEAM MAX to apply corrections and clean the data No angle limits are applied all beams are retained for statistical testing Use your reference matrix file reference mtx in the Phase Three editing 4 Run the Beam Angle Test a Select TOOLS BEAM ANGLE TEST If you want to use all beams less than the angle limit change the selection at the top of the Comparison tab A file selection dialog will open If you want to use only beams within 2 5 degrees of the angle limit click Open Reference Surface Start Test A file selection dialog will open b Select the Reference Surface to which you will compare the check lines and click OK The calculations will be made and the results will be graphed to the screen The Beam Angle Test presents two graphs e The Comparison graph shows the correlation between depth accuracy and beam angle This comparison may be based on all soundings from beams less than the angle limit or soundings from beams within 2 5 degrees of the angle limit Typically we see a decrease in accuracy when the beam angle exceeds 75 degrees 7 04 Z Beam Angle Test Beam Angle Comparison Graph Comparison E Details Confidence Level oj 2 Depth Bias Reference Check x CO rt b Gg 0 C Open Reference Surface Start Test Anmgtest Ext Close e The Beam Angle Test also calculates the differences in depth readings between the reference surface and t
53. e data in that cell will be displayed in the Survey Profile and Cell windows 3 Examine and edit your data These windows provide many ways to view data It is your decision what data to edit 4 Continue to repeat the last two steps until MULTIBEAM MAX has progressed to the end of your data Automatic Editing 1 Set your Search and Filter criteria 2 Select FILE FILTER ALL and wait MULTIBEAM MAX automatically deletes all points outside the limit Beware It s fast It s easy It s DANGEROUS No computer program can replace human intelligence and common sense when it comes to editing data Use this feature with caution a Sweep Window in Multibeam Max The Sweep window shows your data in map view The top display shows several sweeps at a time according to the number of sweeps specified at the top right The lower display shows one sweep at time The cursor positions in this window are synchronized to each other Sweep Window 200 0 oe If you have loaded corresponding side scan data you can view it by clicking the Show Side scan icon Arrows at either side of the side scan display indicate the current cursor position in the Sweep Window 72 e HYSWEEP Processing 7104 Side scan Window Delete E Point Icon a Eraser Icon 7104 E 1 1 O C Average Brightness Contrast i Peak Point Editing To Point Edit you can e Click the cursor point on the point you wish to delete and click delete poi
54. e it as a guide in your editing process Note Channel Plan files PLN created in CHANNEL DESIGN may be converted to CHN format in the ADVANCED CHANNEL DESIGN program select FILE PLN TO CHN This enables you to overlay template information from files created in CHANNEL DESIGN HYSWEEP Processing 61 8 Creating Targets in Multibeam Max Target Dialog As you view your data in the various windows of MULTIBEAM MAX you can create a Target to mark some point of interest l Select the point where the Target should be placed and hit FS The first time in each session you mark a Target a File Select dialog will appear 2 Name your file Ifyou are creating a new Target File provide a name and click OK If you want to add to an existing Target File select the file from your project folder and click OK A Target dialog will appear for you ae Description 13 52 23 Easting e 8199 2 Northing 668331 2 Depth 51 3 OF Cancel 3 Optional Edit your Target Name and Position information and click OK The Target will be saved to your Target File and displayed in the MULTIBEAM MAX editing windows Note Be careful if you are editing the Easting and Northing an error in typing could place it outside of your survey area When you exit MULTIBEAM MAX the Target File can be displayed in the Max map window and used as any other Target File 9 Search and Filter Options in Multibeam Max 62 e
55. e using while collecting data 4 Apply Corrections to Entire Catalog enables you to use the same set of corrections for all of your selected files If this is not checked MULTIBEAM MAX will ask you to set corrections for each survey line selected Set the corrections for the line named in the title bar and click Next The Corrections dialog will appear once for each selected line 1 Tide Corrections in Multibeam Max a Applying Predicted Tides in Multibeam Max Tide Corrections are usually read from Tide Files TID created by the HYPACK MANUAL TIDES or HARMONIC TIDES PREDICTION programs They may also be read from HYPACK Raw Survey files that have tide information in their headers Tide Corrections relate raw soundings to the chart low water datum When creating a tide file for depth mode enter tide values as negative numbers When creating a tide file for elevation mode enter tide values as positive numbers Units are according to those selected under Geodesy feet or meters Information on creating Tide Files may be found in the Utilities section of this manual If tide corrections were not recorded during SURVEY or you need to change your Tide Corrections select a new Tide File by clicking Open File under Tide Corrections and selecting the correct file from the file selection dialog Note This will overwrite any tide corrections value previously saved in your file b Interpolating Tide Corrections from Mu
56. eate an irregular area on which to perform a block edit Click the Border Tool icon then define the perimeter of the area to be block edited by clicking series of points around it in the Profile Window When you click the Delete Inside Block I or Delete Outside Block O icon MULTIBEAM MAX closes the border and performs the edit B efore Profile Window By Columns the Edit bonae Offset 276 4 ez s ol ai x t i xj A fter Profile Window By Columns the Edit Depth 31 6 io gg eJ e 7 x Baie xj iB Filter The Filter Window button will filter all of the data that appears in the Window Profile window according to the current Search and Filter settings Icon 3 Cell Window in Multibeam Max The Cell Window is used to view and edit edited survey data It displays the data in the matrix cell corresponding to the cursor position in the Survey and Profile Windows and which 1s defined in the status bars 78 e HYSWEEP Processing 7104 7 04 Cell Window Ea Delete Point Icon Eraser Icon Cell Window Rotation Angle Samples Range Average Sigma Median Hode Depth Histogram Bin Size 0 2 You can scroll through your data one matrix cell at a time using the arrow buttons The displays in the Survey and Profile windows will update accordingly If you want to change the rotation and angle of the view use the Rotation and Angle slides You can also view the data
57. ecifying Devices in HYSWEEP Hardware ssssssssssscccececcccccosssssssssseee 1 Driver Setup in HYSWEEP HardWare ssssseccccssscccccssscecossseecosssseesossssee 2 Connection Information in HYSWEEP Hardware essssecccssccccsseecsseeocooe 2 Testing Serial Communication in Hysweep ecce eee eee ee e ee eee eerte 4 Offsets in HYSWEEP Hardware ecce eee e e e eee eee ee ee eee eee e en nnns 5 Position Offsets in HYSWEEP Hardware esses 6 Rotation Offsets in HY SWEEP Hardware cccccccccccsssssssssseseeeeeceeceeeeeeeeeeeaaaaaas J Latency 1i HY SWEEPS HARDWARE ccia eae ae 7 Calibrating your SyS Eell ie eoo ioi i2 as et eae esena naina a c0 OL OU YER n nie as EnaA 8 gud TT 8 AUC NC IRE NU ET 9 Adiustiis Hard wate Olsels caeci t Pb pP a d 16 Applying Data Adjustments to Survey Data ssssesssseeeeeeeeneeennnnnnnnnnnnns 18 HYSWEEP SURVEY 21 Hysweep Display Windows ssssssssseeeceecoccooocsssssseseeseccesesooooosossssseseeseeeeosooso 21 Main Window in Hysweep Survey ccccccccccsssceseseeeeeeeeeceecececeeeeeeeeecesceeseeeeeeeeeeees 21 Profile Window in Hysweep Survey s sot ee otii e cepto sels nieto 29 3D Seatloor in Hysweep Survey sunaria ete ERE E RH E ERE EE ES MER Erde e ed eye ds 23 Multibeam Waterfall in Hysweep Survey cccccccccccccccccccceceeeeeeeeeeeecces
58. ects e Length and Width Matrix files are given cell length and width when designed The HYSWEEP operator can override them here If the matrix update process is excessively slow in the coverage map make the cells larger until an acceptable speed is reached e Calculate Calculates the number of cells and approximates the total memory required for the matrix If a matrix requires 256 Mb of memory and your computer only has 128 Mb you need to make the cells larger Show options determine which value to display in HY SWEEP SURVEY e Minimum For each cell show the minimum of all soundings falling within the cell e Maximum Show maximum sounding e Average Show the sounding average e Overlap Show sounding difference Max Min e Coverage Show Ix 2x multibeam coverage 7 04 HYSWEEP Survey e 39 C Targeting and Target Files in HYSWEEP Survey HYSWEEP SURVEY provides complete targeting support 1 Loading Target Files to HYSWEEP Survey Selecting a Target File in HYSWEEP Target files may be pre defined in HYPACK MAX Alternatively one may allow HYSWEEP amp SURVEY to create new target files on the fly Select TARGET FILE to make your choice te Select Target File C 4C Miel Ea OF Cancel Use Default File tells the program to create a target file named by the current date Load presents a File Selection dialog for you to choose the target file to which you want to add any targets
59. eeele 42 0 0 0 500 0 Automatic Cross Section Vertical Adjustment Start Test Close 7 04 7 04 Patch Test MULTIBEAM MAX Pitch Test Roll GPS Latency Pitch Yaw Test Settings and Results o Adjustment 3 initial Offset 5 0 Final Offset Angle Time Step Number of Steps Cell Size Cross Sections Patch Test Result 420 22222 22222 eee eee e eee e ee Automatic Cross Section Vertical Adjustment Patch Test MULTIBEAM MAX Yaw Test Rol GPS Latency Pitch Yaw Test Settings and Results Adjustment 21 Initial Offset Cell Size 5 0 Final Offset Angle Time Step Number of Steps Cross Sections Patch Test Result 42 0 450 0 Sonar Head Selection Head 1 1 4 10 00 lt Previous i Start Test Close 10 00 Sonar Head Selection Head 1 Depth Error eee Melee 15 0 364 n 63 0 2 2 2 22 22 22 22 2 Automatic Cross Section Vertical Adjustment 4 Example of Patch Test 63 0 460 0 1 3 10 00 10 00 lt Previous Next gt Start Test Close The following is an example of an actual Patch Test The data sets are distributed on your install CD You will not be able to do the example problem unless you have a HYSWEEP installed on your computer and a HYSWEEP or Universal hardlock installed on the printer port Example Catalog file HSX PATCHTEST LOG contains raw data files from a patch t
60. esseeeeeeeeeeeaes 24 OC Test Window HysweepB SU VeV uem teet aee entend tite t oet p bt a E ons 24 Coverage Map and Cross Section Windows in Hysweep Survey 25 PAPA MAGS AV HOO W ossis som oomen tetti eae acd usos ated clear a d o ses inn ie die ipei oed 2 Seabat 9001 Control Window in Hysweep Survey eseeeeeee 27 View Options in Hysweep Survey ccce eee e eee eee eee eee eene eese s sosaus 28 Range Settings in Hysweep Survey cccccccccccccccccsscsseeseeeceeeeeeeeeeeeeesseeeeeeeeeeeeeeeeass 28 Multibeam Display Settings in HYSWEEP Survey seseemIR 29 OC Test Settings mi Hysweep Survey qe ae HT EE a dt 30 Coverage Map Settings in Hysweep Survey ccccccccccccccccccceccceeeeeeeeseeeeeseeeeeeeeaees 3l Other Display Settings in Hysweep 9 Survey ccccccccccccccccccccceeeeeeeeseceeeeeeeeeeeeeeeeaees 3l Color Settings In HySweep Sur vey uie ones tte ah rt Rep beet i pa iA ete goes oet 32 Files and Filenames in Hysweep Survey sssssssssccccecoccooccssssssesscecceeseesosooso 32 Corrections in Hysweep Survey cccccccccccccccccccccccccccccsssssssssssssssssccees 33 Tide Corrections imn HysweepB SUEVE Y essc p BD ERIT DINH IU Du 33 Squat and Settlement Dynamic Draft Corrections in Hysweep Survey 33 Sound Velocity Corrections in Hysweep Survey eese 34 Logging Data in Hysweep Survey
61. est Use the Patch Test program in Multibeam Max to find the roll error Solution 1 Open MULTIBEAM MAX by selecting PROCESSING MULITBEAM MAX 2 Open a Sounding Catalog by selecting FILE OPEN F2 A file selection dialog will appear HYSWEEP Hardware e 15 3 Select the HSX PATCHTEST LOG file and click OK A list of files in the catalog will appear 4 Select ROLL1 hs2 and ROLL2 hs2 for roll testing then click OK The File Open Options dialog will appear 5 Set File Options These are some basic choices about how MULTIBEAM MAX will read and save the data 6 Enter your Tide and Sound Velocity corrections Open File in each section will enable you to browse for each file Click OK and the READ PARAMETERS window will appear 7 Select the correct devices for each data type for each file selected In this example select GPS for Navigation NMEA 0183 gyro for Heading TSS for Heave Pitch and Roll and Seabat as the echosounder Click OK 8 Examine and edit your data as described in the chapter on Multibeam Processing 9 Calculate your Adjustments in the Patch Test a Launch the Patch Test Only available in phase 3 of MULTIBEAM MAX gt If you want MULTIBEAM MAX to choose the cross section on which to base the statistics select TOOLS PATCH TEST gt If you want to choose the cross section on which to base the statistics yourself click the wrench icon in the survey window then define the cross
62. et or two meters according to your survey units You may set other measurements 1f you wish J Editing Data in Multibeam Max Phase Three In Phase Three use the Search and Filter options to re evaluate any points you may have left in during Phase Two This phase grids the soundings to a matrix and displays the data in ways that were not previously available to you that may make your editing decisions more clear Phase Three also uses the Statistical Filters which may present you with some new points to evaluate 1 Survey Window in Multibeam Max Phase 3 76 e HYSWEEPO Processing The Survey Window reappears in phase three of the editing process displaying your soundings in a matrix You can block edit and point edit the soundings as you did the tracklines in phase 1 In this phase Search and Filter Options are also useful to search out the last points that may need to be removed The display will be oriented in the Survey Window so the horizontal cross hair will always mark the location of the cross section viewed in the Profile Window The information on the status bar reflects the position of the cursor 7 04 Survey Window in Survey Window Min Depth Phase Three Editing JARN JAJAA Position the cursor by clicking anywhere in the graph The cursors in the Profile and Cell Windows will update to coincide with the new position The information in the status windows pertains to the current position You may also d
63. etting your Offsets 7 04 Click the Offsets tab to enter device mounting offsets and latency times Users of multibeam sonar systems should understand the importance of these offsets and the difficulties in finding the right values Offsets are stored in Hysweep ini in the Hypack Projects directory HYSWEEP HARDWARE also makes a backup copy in the project directory Hysweep Hardware Setup Hypack Survey Equipment Connect COM Test Offsets Antenna Offsets Rotation Position Enter Device Rotation from Forward raw and Vertical Holl and Pitch Enter Device Offset From Boat Reference Point Center of Mass Yaw rotation follows azimuth clockwise rotation is positive Bow up is positive pitch port side up is positive roll The Vertical Offset is Posittve Downward and Measured From Waterline Starboard 0 00 0 00 Forward V erlical Device Latency Enter the Latency Time Positive in Seconds Installed on Towfish Hul ple Transducers Close Help About Hypack Survey HYSWEEP Hardware e 5 Boat Reference Dialog The drop down list at the top selects one of the offset points that apply to the device Offset points are Antenna Offsets Applies to positioning devices such as GPS location of the antenna Heading Offset Yaw Applies to gyros and other heading devices rotation required to measure heading relative to gri
64. exit l Specifying Devices in HYSWEEP Hardware Adding and removing devices is easy from the Manufacturer Model Tab To add a device select the device in the left side list then click Add The device should write to the Installed list If a device has setup specifications that need to be defined the Setup button will be enabled and will display a dialog with the required setting choices To remove a device select the device name in the Installed list then click Remove HYSWEEP Hardware e 1 The Equipment Tab te Hysweep Hardware Setup T55 DMS Equipment Connect COM Test Offsets Manufacturer 7 Model Installed Hypack Max Add gt Hypack Surrey Hypack Netpack Reson Seabat 8101 Hypack Survey HHEA 0183 Gyro NMEA 0183 Gyro lt Hemove Odom Echoscan Il Odom Miniscan Reson Seabat 8101 Reson Seabat 9001 Reson Seabat 9003 Seatex MAUB SGBrown 10005 Gyro Simrad EM 3000 Simrad S5SH2000 Simulation Multibeam T55 335 rss DMS ll Driver Setup in HYSWEEP Hardware Setup dialog for the Some device drivers require settings specific to the device In these cases Setup is enabled Click it and the Driver Setup dialog appears An example of this is the driver that connects HYSWEEP to HYPACK SURVEY The Driver Setup dialog determines whether to use the tide corrections draft corrections and heading provided by HYPACK 9 CoastalO Driver Setup HYSWEEP Interface Hypack Use Hypa
65. ference surveys Beam Angle Test 81 procedure 80 reference surface 7 04 creating 80 saving 80 single Beam Test 83 reports Beam Angle Test 82 roll devices calculating offset adjustments Patch Test 9 10 correcting data Data Adjustments program 10 18 Multibeam Max 19 displaying Multibeam Max 19 51 editing Hardware program 10 Multibeam Max 19 51 offsets Hysweep Hardware 5 6 7 roll vessel correcting data Hysweep Survey 31 displaying Hysweep Survey 22 Multibeam Max 57 67 72 search and filter options See Multibeam Max filters search and filter options search criteria Multibeam Max 60 63 serial hardware connections testing 4 settings Hardware program heading devices 2 pitch 9 saving 17 yaw 9 Hysweep Hardware connect 2 driver setup 2 heading 7 latency 5 7 offsets 7 5 8 10 pitch 7 8 9 roll 7 8 yaw 6 9 Hysweep Survey sound velocity corrections 34 3D seafloor window 28 31 alarms 22 colors 32 coverage map window 30 data logger 36 HYSWEEP Processing e109 draft squat corrections 33 logging options 36 matrix options 37 multibeam waterfall window 28 31 profile window 28 31 QC test window 30 tide corrections 33 Mapper color 91 data selection 89 90 matrix files 91 matrix files Mapper 91 Multibeam Max 72 Multibeam Max advanced read parameters 53 54 channel overlay 59 color settings 55 57 58 file options 47 heave corrections 66 mat
66. from the eight adjoining cells by clicking on the Include Neighboring Cells button You can edit any data that 1s showing Point editing To Point Edit you can Click the cursor point on the point you wish to delete and click delete point icon on the MULTIBEAM MAX shell Click the eraser icon on the Survey window The cursor becomes a small square Center the cursor over the point or points you want to delete and right click Block editing Put a rectangle around a group of points then deleting all points inside or outside the block 1 Select a block of data points by clicking and dragging from one corner to the diagonally opposite corner If you re unhappy with the results just try again 2 Edit the Data by clicking the Delete Inside Block I or Delete Outside Block O icon The Filter Cell button will filter all of the data that appears in the Cell window according to the current Search and Filter settings The Search button or selecting EDIT FIND NEXT asks MULTIBEAM MAX to seek the next matrix cell where the data falls outside the Search and Filter settings The data in the cell will then be displayed It s up to you whether to edit the data or leave it intact HYSWEEP Processing e79 Statistics about the current cell are shown at the bottom left They are automatically updated after any changes are made Samples The total number of soundings in the cell Range The minimum and maximum depths in the cell
67. g Survey select the Tide Corrections TID file to which you want to apply the data This option is disabled if you are working with edited files If you are working with raw data and have not applied sound velocity corrections during Survey select the Sound Velocity Corrections VEL file to which you want to apply the data This option is disabled if you are working with edited files 9 If you are working with raw data set your Read Parameters This enables you to apply pre filtering and perform other operations on the data as it 1s read into the editor 10 Examine and edit your data This is a three phase process Each phase will automatically display the windows as described but you can access any window at any time through the View menu options HYSWEEP Processing e45 B Tools 11 Phase One Examine and edit the graphs representing corrections and track lines Convert raw data to corrected by selecting FILE CONVERT RAW TO CORRECTED F4 Phase Two Graphically examine the Soundings Scroll through the survey lines by using the arrow buttons making any necessary corrections for each sweep Repeat the editing process for each selected survey line until you have edited all of your data Grid your data by selecting FILE FILL MATRIX or click the icon The Matrix Options dialog will appear You can choose to use a Matrix file that has been created in the Matrix Editor Otherwise you may choose to allow MULTIBEAM MAX
68. has become insignificant except for the yaw calculation It is still wise to perform this calculation last 4 Enter the adjustment values in the Offsets Dialogs in the HARDWARE program 5 Correct the offsets in data collected with incorrect offsets with the DATA ADJUSTMENTS program 6 If hardware or data adjustments are necessary follow the directions in the following sections EXACTLY Making these adjustments with attention to whether you should add or subtract and if your number is positive or negative is important 2 Patch Test Data Collection Lines are run over specific bottom terrain in a specific way for each offset patch test only works on overlapping data so take care to stay online And always collect two sets of data to double check the results Verify the multibeam power and gain settings before data collection to minimize spikes 10 HYSWEEP Hardware 7 04 7 04 a Single Head Data Collection Pattern Map View of Patch Test Survey Lines with Bottom Contours a Tests Roll Angle b Tests Positioning System Latency c Tests Pitch Angle d Tests Yaw Angle 4 2 e To test the roll angle locate an area where the bottom is smooth and flat Create a 200 to 300 foot planned line over this area then run the line in both directions at normal survey speed Over these bottom conditions latency pitch and yaw angles do not matter e To test latency create a 200 to 300 foot planned lin
69. hatever transducers lined up next to each other People with single transducer experience should have no trouble adapting to multi transducer Multibeam boats can survey in much rougher water with certain disclaimers We have seen good results with up to 3 foot heave and 10 degrees pitch and roll but there is a limit Multibeam systems offer greater coverage in moderate water depth In the figure to the right with water depth of 20 feet and fan of 90 degrees the sweep width 1s approximately 40 feet With this configuration coverage 1s twice water depth so beyond 30 feet the coverage 1s greater than with the multi transducer Some multibeam sonars can be tilted as shown in this figure for bank and jetty surveys They may also be purchased with angular coverage of much greater than 90 degrees The power of the multibeam sonars is that the narrow beams may be directed at practically any angle with great accuracy These directed beams are also the source of all the complications including acoustic refraction pitch and roll compensation patch tests etc That s why training courses are offered Ill Devices Supported in HYSWEEP Hardware Driver Analog Side Scan Atlas Bomasweep Description Side Scan driver Multiple transducer driver Atlas Fansweep Network Multibeam driver using the network interface Atlas Fansweep Serial Multibeam driver using the COM port interface Benthos C3D 102 e HYSWEEP Processi
70. he check lines It then graphs the number of differences in increments of 0 1 survey units in the Details Tab Perfect accuracy would be reflected in a single vertical line centered over the zero Since surveying technology is not perfect you should see the data presented in a bell curve The Depth Accuracy 1s the average difference calculated using data from the beams within a user specified angle limit You can choose the angle limit to be used in these calculations The graph and depth accuracy will update according to the selected depth angle Note The program will omit any beam angles where the data falls outside of the reference matrix Beam Angle Details 4 Beam Angle Test Comparison Details Choose Angle Limit Depth Accuracy 20 0 0 35 Histogram 0 Difference Reference Surface Check Line You can view the information in more detail by clicking Angtest txt The program will show the same information in a more detailed form 7 04 HYSWEEP Processing 85 A Sample Angtest il Angtest txt Notepad File Edit Search Help l Beam Angle Limit Depth Accuracy at 95 Confidence 2 25 3H 35 48 45 5 55 6 65 Ta T5 Angle Samples Ave Diff Ref Check 3 Single Beam Test Check Lines 86 e HYSWEEPO Processing 35 34 33 32 31 30 29 29 29 28 29 29 48 B di BH 48 B 24 18 16 10 H7 88 H8 88 H8
71. ide up is positive roll Yaw 0 00 0 00 0 00 Device Latency Enter the Latency Time Positive in Seconds 0 000 Installed on Towfish Close Help About Multiple Trangsducers Hypack Survey D Applying Data Adjustments to Survey Data If you run your calibration test before the survey and the calculated adjustments made in the hardware setup data should not have to be adjusted We all know however that things happen and we may need to adjust survey data When it is are required existing single beam data files are fixed by the DATA ADJUSTMENTS program Multibeam data is adjusted as it is read into MULTIBEAM MAX 1 Applying Data Adjustments to Raw Multibeam Data Beware Read Carefully 18 e HYSWEEP Hardware If data adjustments are necessary follow the directions in the following section EXACTLY Making these adjustments with attention to whether you should add or subtract and if your number 1s positive or negative 1s important Select UTILITIES FILE WORK DATA ADJUSTMENTS l and a dialog will appear Enter the adjustment values as calculated by the PATCH TEST e To adjust roll and pitch check ADJUST HEAVE PITCH ROLL and enter the dPitch and dRoll adjustment values e To adjust yaw check ADJUST GYRO and enter dTheta This old program can not adjust the multibeam directly e To adjust latency check ADJUST POSITIONS and enter dTime e En
72. il SV Profile is Entered provides an alarm if you have not loaded your sound velocity corrections Of course unless you are using the EM2000 EM3000 or EM3002 driver which preprocesses your data you can add or change these corrections during post processing by loading a Sound Velocity Corrections file VEL in MULTIBEAM MAX 7 04 7 04 D Coverage Map Settings in HYSWEEP Survey Coverage Map Tab Coverage Map settings control the Coverage Map Show Scale Bar Show Multibeam Coverage Show Matris Show Sidescan Coverage Follow Boat Show Planned Lines Clear Matrix Clear History Matrix Options Selections e Show Scale Bar Displays the distance scale bar e Show Matrix Displays the sounding matrix This option is enabled only if you are drawing your soundings to HYSWEEP SURVEY e Follow Boat Re centers map when the boat leaves the screen e Show Multibeam Coverage Displays multibeam sweep lines while logging e Show Side Scan Coverage Show side scan lines while logging e Show Planned Lines Displays the planned survey lines Buttons e Clear Matrix Clear matrix file of all sounding data e Matrix Options Select matrix display options e Clear History Clear multibeam and side scan coverage lines E Other Display Settings in HYSWEEP Survey The Other Tab r Sounding Displays Apply Heave Pitch Roll Corrections Apply Tide Correction Black Window Background
73. in Multibeam Max The Tide and Draft Corrections Window shows tide and draft corrections in time series 7 04 7 04 Tide and Draft Tide and Draft Corrections Corrections Window m Static Draft i 290 9n m 10 54 00 000 Tide 4493 1 49 Tide Correction 10 53 00 Draft Correction 10 53 06 10 53 48 Point Editing Tide and Draft Corrections You can edit points in either graph by selecting the point with the cursor and clicking the Delete Point icon or the Delete key Block Editing Tide and Draft Corrections 1 Click on the N button The Fill Options dialog will appear for Tide and Draft corrections Editing Tide and Fill Options Draft Corrections i v Fill Tide Correct with Fill Options addu E Fill Draft Correction 2 Check one or both checkboxes according to what you want to edit and enter the new values in the corresponding input box Draft Squat Corrections When entering draft corrections enter a positive number when the boat is riding lower in the water The reference point is the waterline when the transducer s depth offset is measured The draft correction does not include the transducer depth offset Squat and settlement can be applied by changing draft values Tide Corrections When entering tide corrections for depth mode enter tide values as negative numbers When entering tide corrections for elevation mode enter tide values as positive numbers
74. in Multibeam Max The RTK Tides check box tells the program you want to calculate water level corrections using RTK GPS elevation If this box is selected the two items below it become active to specify the basis for the calculation For RTK Tides to accurately determine water levels you must have made a Kinematic Tide Data K TD file and used the Kinematic dll device driver Filter Based on GPS Mode tells the editor to discard all tide values where the GPS 1s not in the Fixed Integer mode cm vertical accuracy The program defaults to the standard GPGGA value of 4 but you may edit this value if you wish 7 04 HYSWEEP Processing 55 Induced Heave is caused when the MRU is not mounted at the pivot point of the boat 56 e HYSWEEPO Processing The Average Tide Data to Remove Heave method averages the RTK elevations over a user specified Average Period to remove the effects of heave for the tide data The Merge Tide Data with Heave method uses the RTK elevation as the starting point It then uses the heave data received to determine the antenna height until the next RTK elevation is received The accuracy of your GPS latency setting affect the accuracy of this method Both methods give similar results The averaging method seems to be preferable particularly if your survey boat is in rough waters b MRU Motion Reference Unit in Multibeam Max The MRU options let you specify how the heave information from a mot
75. in present until you use the filters to remove it b Statistical Filters in Multibeam Max The Statistical Tab is used by MULTIBEAM MAX in phase three editing when the data has been gridded to a matrix It finds the sounding statistic value in each cell as defined by the Cell Statistic option It then refers to the Filter Above and Filter Below options to search out or delete data outside of the specified ranges from that value Cell Statistic Edit Phase 3 C None Average C Maximum C Minimum Filter amp bove Enabled C 2 Sigma Limit C 4 Sigma Limit i Set Limit 2 0 Feet Filter Below W Enabled C 2 Sigma Limit C 4 Sigma Limit i Set Limit 2 0 Feet WM Adjust Filters to Account for Sloping Bottam Most of the Cell Statistic options are self explanatory None disables this filtering method The Median value with equal number of soundings greater and smaller is usually the best choice for the cell statistic The Filter Above and Filter Below settings either one or both can be enabled to delete data of significant difference from the cell statistic You will choose the limit that defines good vs bad data 2 Sigma Limit Two standard deviations from the cell statistic is dangerous as it can result in the deletion of a lot of good data 4 Sigma Limit Four standard deviations from the cell statistic 1s pretty safe but it s still a good idea to search and manually edit the data instead of blindly filtering all
76. ing Adjust Tides The program will assign tide correction values only to the edited files It does not change the raw files 2 Sound Velocity Corrections in Multibeam Max If you are editing raw data and have not yet applied sound velocity corrections select your Sound Velocity Corrections file by clicking Open SV File and choosing it from the file selection dialog Sound 52 e HYSWEEP Processing 7104 Velocity Corrections are read from files created in the Sound Velocity program VEL described in the Single Beam Processing chapter F Read Parameters in Multibeam Max The Read Parameters Dialog follows the Corrections Dialog Set your options in each tab then click Finish to continue 1 Selections Tab in Multibeam Max Read Parameters In the Selections Tab you select the devices to use for navigation heading heave and pitch roll data tide corrections and one or more devices to use for sounding data If you have side scan data load it by checking the box Read Parameters Read Parameters Selections Tab selections Device Info Survey Info Presort Advanced For each sonar system select data soundings and or sidescan and associated devices navigation heading heave pitch roll Sonar Reson Seabat 8101 W Load Sidescan if available Navigation Hypack Max Heave Heading rss DMS Hypack Mas Pitch Fall Tide rss D MS Hypack Mas Cancel 2 Device Info
77. ion Track Limes end Planned Lines Depth Humba Scaling 4 Guioocele Max Points per Cell D Aulopcal Mex Cel Veilical Range Autscale Mau Std Deviation fe Aulozcale Depth Elesason Mir inl Show Actwe Filters Show Deleted Ponts Fiter Options Apply I x Cancel The Show options define what data will be displayed The Scaling options determine the size of depth range represented by each color MULTIBEAM MAX uses a constant number of colors and divides the range into that number The wider the range results in more depth values represented by the same color Autoscaling will use the minimum and maximum values and evenly distribute the colors across that range It will create the optimal settings unless you have values that are drastically out of range Track Lines and Planned Lines superimposes the lines on the sounding display Depth Numbers converts the color coded cells to numeric depth readings b Profile Window Display Settings in Multibeam Max The Profile options control the display in the profile window 7 04 HYSWEEP Processing 57 View Options t View Options Bs Profile Tab Survey Profle Cal Raw eta Sweep Colors nerraticer Gul Profiles by Ross Cut Profiles by Column Humber of Rows Columns Each Profile Scar Separate Scale for Prole Window Ii LTIT o fe Show Project Depth h Auloscele Depth Elevation Minimum
78. ion reference unit MRU will be applied Correct for Induced Heave is used when the MRU is not mounted at the survey vessel s pivot point In this case the heave measurement is affected by the pitch 1f the MRU is mounted forward or aft of the pivot point or roll 1f it is mounted port or starboard This is known as induced heave k True Heave l 7 induc ed Heave A check in this box tells HYPACK MAX to determine a heave correction for every sounding to compensate for this difference c Sonar Settings in Multibeam Max Fixed Number of Beams accommodates echosounders like the Seabeam 1xxx series that allow you to change the number of beams in use e If you have used this feature to limit the number of beams for the entire survey you can enter that number here e f you have used this feature during Survey changing the number of beams one or more times or if you are unsure how many beams were used enter the maximum number of beams available in the system 7 04 6 Display Settings in Multibeam Max select VIEW OPTIONS F9 to display the View Options dialog This dialog has six tabs to configure your MULTIBEAM MAX display settings a Survey Window Display Settings in Multibeam Max The Survey tab controls the Survey window display View Options Survey Tab us Parts per Cell Minimum Depth Elevation e Cel Veitical Range f Memum Depth Elevation Cel Std Deviation Average Depth Eleval
79. istance Input Points 1989 Output Points Bue F eduction Level Reduction Time 0 14 s Iv H eight of Peaks Actual Reduction B5 bb X Optimize Reduction Error C Speed Average 3 55 deg 3 95 X Reduction Deviation 1 49 deg E Sze SSS HYSWEEP Processing e95 Height of Peaks On the left hand side of the window are the parameters that are user defined criteria for the reduction process Max Distance defines the maximum allowable horizontal distance between points If you have large flat areas this value will prevent large empty areas in your data set Smart Max calculates maximum distance based on the selected set of points It overrides the default Max Distance value and displays the calculated value for the selected data set Reduction Level is maximum allowable angle between the base and vertex If any of the angles exceed this angle the point will remain Height of Peaks determines the minimum allowable vertical distance between the connected points If the apex of a tetrahedron is greater than this distance above its base it will remain in the data set Note If the apex of a tetrahedron falls outside of the area described by its base the apex will remain in the data set nd alls within the area defined by the Apex falls outside the area defined by the aoe base Optimize Speed or Reduction seems pretty self explanatory 3 Sounding Reduction Statistics 96 e HYSWEEP Processing After
80. ity data survey files 68 single Beam Test 84 Sounding Reduction program 93 94 strikes Mapper 89 90 Multibeam Max 79 survey files edited correcting Multibeam Max 49 51 tide corrections 49 displaying Multibeam Max 42 46 55 59 68 69 editing Multibeam Max 69 64 77 7 04 loading Mapper 88 Multibeam Max 43 46 Sounding Reduction program 93 saving Multibeam Max 44 77 78 sorting 85 96 Mapper 86 Multibeam Max XYZ reduction 78 79 Sounding Reduction program 92 tide corrections 49 survey files raw correcting heave 65 Multibeam Max 49 tide corrections 49 displaying Hysweep Survey 23 28 Multibeam Max 42 46 55 59 68 69 editing Multibeam Max 64 77 overview 41 loading Multibeam Max 43 46 logging Hysweep Survey 21 35 36 naming 33 playback Hysweep Survey 40 simulator 40 tide corrections 49 survey files sorted clipping Hypack Max 84 displaying Mapper 89 90 saving Mapper 89 Multibeam Max XYZ Reduction 78 79 Sounding Reduction program 93 survey lines displaying Hysweep Survey 31 Multibeam Max 55 reference surveys 80 7 04 survey window See Multibeam Max windows survey window swath surveys See multibeam surveys sweep surveys See multibeam surveys sweep window See Multibeam Max windows sweep window SWP files Mapper 86 Multibeam Max 46 78 target files appending Multibeam Max 60 creating Hysweep Survey 39 Multibeam Max 60 displaying Hysweep
81. ksum Timeout Interval Seconds 1 0 Record Raw Messages Network Connection Port 1338 Internet Address fi 27 0 0 1 Close Help About Atlas Fansweep Network IV Testing Serial Communication in Hysweep Hardware The COM test shows status of serial communication ports through 10 Ports shown as available are those that HYSWEEP can open for reading although this can be misleading Modems for example show up as available but are seldom used for device connection Ports shown as not available are truly that Ports connected to working HYSWEEP devices show the latest messages ASCII devices like the TSS and Sperry gyro send easy to read messages Binary devices like the Seabat and Seatex show garbled messages even when the data 1s good The screen capture shows an interfacing problem the TSS and Seabat ports are reversed If you noticed that I think you can safely skip the rest of this manual 4 e HYSWEEP Hardware 7 04 The COM Test Tab ke Multiscan Setup NMEA 0183 Gyro Equipment Connect COM Test Offsets COM1 Not Available COM2 Available COM3 Not Available COMA Not Available COM5 NMEA 0183 Gyro Not Available COM6 Not Available COM7 TSS DMS Available YY COM8 Reson Seabat 9001 Available 0100F 0797 0399 123456 0100F 0800 0400 I 1 COM9 Not Available COM10 Not Available Pause NMEA 0183 Gyro V Offsets in HYSWEEP Hardware S
82. lays grid position and depth Coverage Map te Coverage Map Minimum Soundings z eee To cut a cross section through the sounding matrix click the cross section tool and drag the section line across the matrix Matrix Cross Section te Matrix Cross Section Minimum Depth Maximum Depth 60 0 60 0 To access the Coverage Map select VIEW COVERAGE MAP from the main menu Display settings may be set by selecting VIEW OPTIONS then coverage map and through the Matrix menu options 26 HYSWEEP Processing 7104 7 04 G Limits Window Limits Window te Depth and Offset Limits The Limits window shows information about the depth and width of the sweep e The Corrected Depth displays data from the outer beam on each side and the nadir beam The depths on the left of each graph show the minimum to maximum depths read from that beam The depths on the right show the current depth reading e The Offset display shows the width of the sweep The top numbers are the width of the most recent reading The bottom numbers show the maximum distances to either side of the nadir beam and the total of the two values Access the Limit window using VIEW LIMITS Display settings may be set by selecting VIEW OPTIONS RANGES H Seabat 9001 Control Window in HYSWEEP Survey Seabat 9001 Control Window Seabat 9001 Control OF x COM Port e g COM1 9600 N 8 1 co BH 2 1200 N 8 1 Gain Setting 6 Power Setting 5 m Ha
83. ltiple Tide Gauges This program was written for surveys where there are multiple gauges along a river or coastline TIDE ADJUSTMENTS will interpolate tide correction values based on the distances between gauges This tool is available during the first phase of editing in MULTIBEAM MAX to adjust the tide data of the edited output files You will need e A TID file for each gauge location e The distance of each gauge along the center line e A LNW file that contains just the center line e The data files you wish to adjust HYSWEEP Processing 51 River with 3 Tide T 1200 Up Centerline Gauges and a Center Line LNW File Gauge 2 4000 Up Centerline Gauge 3 7000 Up Centerline 1 Start the program by selecting TOOLS TIDE ADJUSTMENTS The Tide Adjust dialog will appear Tide Adjust Dialog 10 xl Center Lin LNW File nele Open File 0326 tid 0329 tid Open File Adjust Tides Close 2 Enter the name of the LNW file that has your center line and nothing else Click Open File below the LNW File field and select the file name from the File Select dialog 3 Enter the names of the TID files For each Tide file place your cursor in the first available cell in the table click Open File under Tide Stations and select the Tide file from the file selection dialog 4 Enter the Chainage and their distances along the center line for each Tide File 5 Correct the soundings by click
84. n be corrected for invalid offsets mounting angles sound velocity etc so it s smart to save this format when your editing is complete e XYZ is the format used in the sounding Selection and Final Products programs e HYPACK SWP Files edited and saved by the old HYSWEEP EDITOR You may select either individual files or a catalog file A catalog file 1s a list of individual data files If a catalog file 1s selected MULTIBEAM MAX reads the file and provides you with a list of files in the catalog 48 e HYSWEEP Processing 7104 7 04 Selecting your files in Multibeam Max Catalog Select Files 001_1053 HS 306671 Bytes Not Saved 002_1056 HS 253832 Bytes Not Saved 003 1101 H5x 324501 Bytes Not Saved 004 1105 H5x 227809 Bytes Not Saved 004 1110 H5x 377046 Bytes Not Saved 003 1114 H5x 377200 Bytes Not Saved 02 1117 H5x 385178 Bytes Not Saved 001 1121 H5x 405503 Bytes Not Saved 0 03 1125 H5x 334695 Bytes Saved 02 1123 H5x 357744 Bytes Saved Select gt Exit Catalog Cancel You can include all of the line files by clicking Select All or you can include individual files by highlighting them and clicking Select Note MULTIBEAM MAX can handle a maximum of 512 lines ata time MULTIBEAM MAX will default to the next selected file in the list every time you scroll to the next line file number in the Line field at the end of the MULTIBEAM MAX toolbar This list will also be
85. ndow 68 73 sweep window 69 tide and draft corrections window 64 view options 55 59 XYZ reduction 79 multibeam overlap statistics 25 29 30 37 multibeam surveys 97 100 multibeam waterfall window See Hysweep Survey windows multibeam waterfall window multiple tranducers offsets 7 multiple transducer surveys See multibeam surveys multiple transducers system overview 99 navigation system Multibeam Max 51 networks connecting Hysweep Hardware 3 offsets correcting data Data Adjustments program 18 19 Multibeam Max 19 51 displaying Multibeam Max 19 51 editing Multibeam Max 19 51 Hardware program latency 10 pitch 9 roll 9 yaw 9 Hysweep Hardware 5 8 forward 6 height 6 latency 5 7 10 pitch 6 7 8 9 roll 6 7 8 starboard 6 yaw 9 Multibeam Max transducer depths 65 multiple transducers 48 Hysweep Hardware 7 overhang topography 61 overlay Multibeam Max 59 108 e Index Patch Test calculating offset adjustments 13 data collection 10 example 15 overview 9 procedure 10 settings See Multibeam Max settings read parameters 16 pitch devices calculating offset adjustments Patch Test 9 10 correcting data Data Adjustments program 10 18 Multibeam Max 19 displaying Multibeam Max 19 51 editing Hardware program 10 Multibeam Max 19 51 offsets Hysweep Hardware 5 6 7 pitch vessel correcting data Hysweep Survey 31 displaying Multibeam Max 57 67 72 pitch
86. ne then use the right arrow to move on to the next one A Multibeam Max Procedure l Confirm that your Geodetic Parameters match those of your survey data 2 If you have not applied tide corrections during SURVEY create a Tide Corrections file using the MANUAL TIDES or HARMONIC TIDES program 3 If you have not logged Sound Velocity during Hysweep Survey take a Sound Velocity cast and create a Sound Velocity file in the SOUND VELOCITY program 4 Open MULTIBEAM MAX by selecting PROCESSING MULTIBEAM MAX or by clicking the icon 5 Ifyou have XTF files use the XTF to HSX Conversion Tool to convert them to the HSX format that MULTIBEAM MAX recognizes 6 Select your Soundings file by selecting FILE OPEN or using F2 You can select a Catalog file LOG which is a list of several data files or a single data file MULTIBEAM MAX can read either raw or edited soundings It is intended for use with multibeam and multiple transducer data Beginning with version 2 12a you can also load single beam data It 1s not particularly impressive or useful yet but it s the first step to being able to overlay single beam and multibeam data of the same survey area for comparison purposes The File Options dialog will appear next 7 Set File Options These are some basic choices about how MULTIBEAM MAX will read and save the data 8 Enter your Corrections If you are working with raw data and have not applied tide corrections durin
87. ng Side Scan 7 04 7 04 Driver Generic Attitude HYPACK Navigation Imaginex 881 Sportscan KVH Gyrotrac NMEA 0183 Gyro Odom Echoscan ll Odom Miniscan Reson Dual 8101 NY Reson Seabat 8101 Reson Seabat 81xx Network Reson Seabat 81xx Serial Reson Seabat 9001 Reson Seabat 9003 Ross Smart Sweep oeabeam 2100 oeabeam SB1000 Series oeatex MRUG SG Brown 1000S Gyro Simrad EM2000 Simrad EM3000 Simrad SM2000 Tritech SeaKing TSS 335 TSS DMS TSS Pos MV Description Generic Pitch Roll Heading driver Link to HYPACK Survey Imaginex Sportscan Sidescan driver Heading pitch and roll driver Gyro driver for NMEA HDT messages Multibeam driver Multiple transducer driver Dual Head Seabat Multibeam driver 8124 8125 and newer 8101 multibeam driver using the network interface 8124 8125 and newer 8101 multibeam driver using the COM port interface Multibeam driver Multibeam driver Multitransducer Multibeam driver Multibeam driver Heave pitch and roll driver Gyro driver Multibeam driver Multibeam driver Multibeam driver Scanning sonar Heave pitch and roll driver Heave pitch and roll driver Pos MV Heave pitch roll and heading driver HYSWEEP Processing e103 Index 3D seafloor window See Hysweep Survey windows 3D seafloor advanced read parameters Multibeam Max See Multibeam Max settings advanced read parameters alarms Hysweep Survey heave drift 22 30 multibeam sounding overl
88. nge meters 25 ES This window provides control functions for the Seabat 9001 To access this window select TOOLS SEABAT 9001 CONTROL from the main menu HYSWEEP Survey e 27 ll View Options in HYSWEEP Survey Each of the HYSWEEP SURVEY windows is configurable to a certain extent Range settings are adapted to expected bottom depths display styles are selected to the operators personal preference etc The options are all available in the View Options form To access View Options select VIEW OPTIONS from the main HYSWEEP SURVEY menu or press the F9 short cut key Note The side scan windows have separate display options accessed from an icon in their windows A Range Settings in HYSWEEP Survey Click the Range tab to set depth offset and angular display limits Note that while these limits are used by the HYSWEEP SURVEY display windows they do not effect data logging All soundings are logged always period Some of the range settings multibeam depth offset angle and quality limits are saved in data files for optional use in post processing This feature allows the surveyor who knows the water he s working in to control range settings for post processing The Range Tab work Units C Meters f US Survey Foot Intemational Foot Multibeam Minimum Depth 0 00 Maximum Depth f 00 00 Port Offset Limit an 00 Starboard Offset Limit f 00 00 Fort Angle Limit 75 00 Starboard Angle Limit 75 00 Dep
89. ni Mandar Show Acie Filler Show Deleted Ports Filter Options Cancel Define which way in the matrix the cross section is cut to be displayed in the Profile window and the number of matrix rows or columns in each profile If you cut profiles by column the display in the Survey Window will rotate 90 degrees so the horizontal cross hair will always mark the location of the cross section viewed in the Profile Window Scaling enables you to set a depth range specifically for the Profile Window If this set of options are not selected the Profile Window will be scaled according to the Depth Elevation scale settings for the Survey and Cell windows Autoscale Depth Elevation options Show Project Depth draws a line at the user defined level in the Profile Window c Cell Window Display Settings in Multibeam Max The Cell tab presents options primarily affecting the Cell Window Connect Points makes a mesh display by connecting the points with straight lines to form triangles Solid Fill shades the triangles formed by the connected points in gray This 1s only an option if the points are connected 58 e HYSWEEPO Processing 7104 7 04 View Options Cell Tab View Options Raw Data Tab View Options Style amp Points Numeric Connect Points Solid Fill Autoscale Depth Elevation Minimum o o Maximum 50 0
90. nt icon on the MULTIBEAM MAX shell e Click the eraser icon on the Survey window The cursor becomes a small square Center the cursor over the point or points you want to delete and click Block Editing You can put a rectangle around a group of points then delete all points inside or outside the block 1 Select a block of data points by clicking and dragging from one corner to the diagonally opposite corner If you re unhappy with the results just try again 2 Edit the Data by clicking the Delete Inside Block I or Delete Outside Block O icon The Border Tool enables you to create an irregular area on which to perform a block edit Click the Border Tool icon then define the perimeter of the area to be block edited by clicking series of points around it in the Sweep Window When you click the Delete Inside Block I or Delete Outside Block O icon MULTIBEAM MAX closes the border and performs the edit Flagging Questionable Points If there are any points that you feel unsure about editing you can mark them in the Sweep window during Phase 2 by selecting the point in the sweep window then clicking on the flag icon During Phase 3 you can search them out using the search option Points Flagged in Phase 2 This gives you the opportunity to evaluate the questionable point additional contexts that may assist you to make your decision HYSWEEP Processing 73 Flagged Point in the Cell Window of Phase 3
91. o by 1 x1 3 Take a sound velocity cast within the reference area Take an initial tide measurement 5 Run the reference survey and your check lines multibeam single beam or both in rapid succession 6 Take your final tide measurement 7 Create a Tide Corrections File using the MANUAL TIDES program and your tide measurements 8 Create a Sound Velocity Corrections File using the SOUND VELOCITY program 9 Use MULTIBEAM MAX to apply your Tide and Sound Velocity corrections and to remove spikes and outliers Limit your beam angle to 45 degrees 10 Save the gridded average to XYZ format reference xyz 11 Select FILE OPTIONS In the Save Tab select XYZ points only and Save One Point Per Cell Inthe XYZ Reduction Tab select Average and Use actual Position Where Possible HYSWEEP Processing 83 12 Select FILE SAVE The processed reference survey becomes the reference surface 2 Beam Angle Test Check Lines 84 e HYSWEEPO Processing The Beam Angle Test compares multibeam check lines to a reference surface and estimates the depth accuracy of the multibeam system at different angle limits The estimated accuracy can be used to determine if the multibeam system meets survey specifications 1 Run the reference survey 2 Run one or two multibeam check lines through the center of the reference area immediately after running the reference survey ie d water depth 3xd 3 Process th
92. of the data 7 04 Set Limit enables you to set a customized limit Start with one foot in soft bottom surveys and 3 feet in rock conditions Adjust Filters to Account for Sloping Bottom c Search Only Criteria in Multibeam Max As the tab name Search Only says these options are for search purposes only These options are available only in Phase 3 editing and will not cause any data to be deleted if you filter your files Search and Filter Search and Filter Options Options Search Only General Statistical Search Only Bordering Tab Edit Phase 3 Cell Sigma Above Limit Cell Vertical Range Above Limit Hun Filters Reset All Begin Search Apply OF Cancel Cell Sigma Above Limit A large distribution of data would be suspect and result in a large sigma value This option enables you to search out any cell with a standard deviation greater than a user defined limit Cell Vertical Range Above Limit This option enables you to search out any cell with a depth range greater than the user specified limit Points Flagged in Phase 2 searches during Phase 3 for any point that was marked with the flag icon during Phase 2 editing You can then view the same point in the Cell Profile and Survey windows to make your editing decision 7 04 HYSWEEP Processing 65 Bordering Filters in Multibeam Max d Bordering Filters in Multibeam Max Search and Filter Options General Statistical Search
93. ol overview 44 procedure 44 settings 45 XTF to HSX file converter dialog See XTF to HSX File Conversion Tool XYZ format clipping 84 Mapper 86 Multibeam Max 77 Sounding Reduction program 86 92 XYZ reduction Multibeam Max 79 yaw devices calculating offset adjustments Patch Test 9 10 correcting data Data Adjustments program 10 18 Multibeam Max 19 displaying Multibeam Max 19 51 editing Hardware program 10 Multibeam Max 19 51 offsets Hysweep Hardware 5 6 7 7 04
94. ommands 35 overview 21 playback 22 40 settings 3D seafloor window 28 31 alarms 22 30 colors 32 coverage map window 30 data logger 36 draft squat corrections 33 logging options 36 matrix options 37 multibeam waterfall window 28 31 profile window 28 31 QC test window 30 sound velocity corrections 34 tide corrections 33 view options 28 windows 21 3D seafloor 23 coverage map window 25 37 limits window 27 multibeam waterfall window 24 profile window 23 quality control test window 24 Seabat 9001 Control window 27 ignore checksum 3 indicators See alarms Hysweep Survey alarms Side Scan Survey IP addresses Hysweep Hardware 4 keyboard commands Hysweep Survey 35 latency calculating offset adjustments Patch Test 10 correcting data See time tags correcting Multibeam Max 19 displaying Multibeam Max 19 51 editing Hardware 10 Multibeam Max 19 51 settings Hysweep Hardware 5 7 7 04 legends Mapper 91 LNW files Multibeam Max 49 50 LOG files Hysweep Survey 33 37 Multibeam Max 43 logging status Hysweep Survey 22 Mapper 86 92 overview 86 procedure 87 settings color 91 data selection 89 90 matrix 91 statistics 92 matrix files color settings Hysweep Survey 29 Multibeam Max 58 coverage map settings 31 creating Multibeam Max 73 displaying Hysweep Survey 25 30 37 Multibeam Max 72 editing Multibeam Max 73 filling Mapper 87 88 Multibeam Max 72 legends
95. ond Calculation O qu Repeat the same steps beginning with selecting FILE OPEN and changing your parameters to Max Distance 192 and Reduction Level 20 6 Save your Reduced File HYPACK will suggest the name Dam7000b r xyz and the project s edit directory Click Save the reduced set will be saved and you will return to the main window 98 e HYSWEEP Processing 7104 4 Multibeam Appendix I Multibeam Survey Advantages So you re interested in multibeam surveying Known also at times as sweep swath multi transducer and full coverage surveying There is never a shortage of terms and buzzwords but a picture is worth a thousand words so take a look at the following figure and see what multibeam surveying is about TIN Model of 6 lines t E x of multibeam sonar VEL DE TT y e a amet MN E sent 1 E jd data The sonar is a hull mounted Reson Seabat 9001 collected processed and modeled entirely by HYPACK HYSWE EP Data collection courtesy of USACE Los Angeles District This lunar looking image shows dredging progress at the entrance of Los Angeles Harbor While the image is presented three dimensionally with artificial illumination the data from which the image 1s created 1s accurate to IHO standards bathymetrically What an advantage it is to have this type of technology If this area were surveyed with a traditional single transducer boat what would it look like The answer is
96. or errors click Graph when you re done To import Sound Velocity Files Many sound velocity profilers log to a file Import enables import of these files preventing a lot of tedious and error prone typing Click Import select the file recorded by your profiler then the Import Form is shown 7 04 HYSWEEP Survey e 35 Import Dialog Import C XCoastal ProjectsX Cape Cod Ship Canal sHdHA amp H1U 1 Field E 0 H ar 33 T n n m T Accept Record Accept All r Iv a m m E OF Comma Separates Fields Cancel Field shows up to 8 fields Comma Separates Fields is used when commas separate the fields Accept checkboxes pick the depth and velocity fields Skip Record skips a file record Accept Record accepts a file record Accept All accepts all records to end of file After Import you may need to swap columns use Swap Columns or reverse the order use Reverse Order of the model V Logging Data in HYSWEEP Survey 36 e HYSWEEP Processing Data logging may be controlled by HYPACK SURVEY or HYSWEEP SURVEY Logging commands are passed between the two programs to keep them in the same mode You may control logging in HYSWEEP SURVEY using menu commands or the same keyboard shortcuts as HYPACK SURVEY You may also use F7 to call up the DATA LOGGER and use the control buttons in that dialog though there is no real benefit to this option Note Data can no
97. ort Advanced Survey Time and Date 10 53 09 09 28 2000 Hysweep Survey Settings Minimum Depth 0 00 Maximum Depth 70 00 Port Angle Limit 75 0 Starboard Angle Limit 75 0 Quality Limit 1 Project Area Boat Surveyor 4 Presort Tab in Multibeam Max Read Parameters 54 e HYSWEEPO Processing If your data collection is too dense the Presort dialog allows you to discard 1 2 2 3 3 4 or 9 10 of the collected sweeps This is not our favorite method to reduce data sets We prefer using the MAPPER program for this but nevertheless this option is still available 7 04 To thin the data set somewhat choose the percentage of data you feel you can discard and still maintain an accurate picture of your survey area Read Parameters Presort Tab Selections Device Info Survey Info Presort Advanced Enabled Reduce Data by 50 C B X v 75x 90 5 RTK and MRU Settings in Multibeam Max The Advanced tab provides an opportunity to set preferences for RTK Water Level processing and Motion Reference Unit MRU options The Advanced Read Parameters 00 x Read Parameters Selection Device Info Survey Info Presort Advanced Tab RTK GPS Iw ATE Tides Mode for Fired Integer Solution f Average Tide Data to Remove Heave Averaging Period Seconds Merge Tide Data with Heave MALI Corect for Induced Heave Sona Fixed Number of Beams Ja med a RTK Tides
98. r color C QC Test Settings in HYSWEEP Survey QC Test Settings control the QC Test Window QC Test Tab Display v Depth Change by Beam H Sweeps in Sample Set 5 Estimated Standard Deviation by Beam C Multibeam vs Single Beam C Multibeam Sounding Overlap Requires Coverage Matrix Alarm Limits Heave Drift oam 0 Multibeam Single Beam Difference 50 Multibeam Overlap Difference o Show Warning Until S Profile is Entered Display Selects one of the four multibeam QC methods Depth Change by Beam Shows the depth change seen at each beam over the last N sweeps Estimated Standard Deviation Estimates the standard deviation of each beam over the last 100 sweeps Multibeam vs Single Beam Provides multibeam vs single beam statistics Multibeam Sounding Overlap Provides statistics on multibeam overlap This test 1s only available when a matrix file 1s loaded Alarm Limits Enable QC alarms and set limits Yellow indicators in the main window bring these alarms to the surveyors attention 30 e HYSWEEPO Processing Heave Drift Alarm heave drift over 10 seconds beyond the limit One must watch this closely on small boats because sharp turns can cause one or more foot of heave error Multibeam Single beam Difference Alarm difference over 500 samples beyond the limit Multibeam Overlap Difference Alarm difference averaged over all matrix cells beyond the limit Show Warning Unt
99. rag the cursor to measure the distance and azimuth between two points 2 Profile Window in Multibeam Max The Profile Window displays cross sections of the sounding data They are displayed by row or column in the matrix as designated in the Profile Tab in View Options You may also set the colors to designate depth or survey line number or to appear in black and white in the View Options Profile Profile Window By Rows Window Depth 7 3 Offset 141 8 1 Position the cursor by clicking anywhere in the graph The cursors in the Survey and Cell Windows will update to coincide with the new position The information in the status windows at the left pertains to the current position You may also drag the cursor to measure the distance and azimuth between two points 2 Scroll through your data by the number of matrix cells specified in the Profile View Options each time or to jump to the first or last cell in the column or row using the arrow keys 7 04 HYSWEEP Processing e77 You can block edit your data by putting a rectangle around a group of points then deleting all points inside or outside the block 1 Select a block of data points by clicking and dragging from one corner to the diagonally opposite corner If you re unhappy with the results just try again 2 Edit the Data by clicking the Delete Inside Block I or Delete Outside Block O icon Border Tool The Border Tool enables you to cr
100. rix options 72 read parameters 43 51 59 search and filter 60 sound velocity corrections 50 targets 60 tide and draft corrections 64 tide corrections 49 view options 55 59 Patch Test read parameters 16 shoals Multibeam Max 52 59 61 simulations Hysweep Survey 40 Single Beam Test check lines 83 overview 83 procedure 83 reference survey 80 sound velocity corrections alarm Hysweep Survey 34 applying Hysweep Survey 34 Multibeam Max 43 48 49 50 80 displaying Multibeam Max 68 reference surveys 80 110 e Index sound velocity profile window See Multibeam Max windows sound velocity profile window sounding grid dialog See Mapper settings data selection sounding information window See Multibeam Max windows sounding information window sounding reduction See Sounding Reduction program sounding selection programs Sounding Reduction program 86 96 default settings 94 example 95 procedure 93 statistics 93 94 sounding selection programs 41 85 96 See Also Multibeam Max X YZ reduction comparison 85 input and output files 85 Mapper 86 92 Sounding Reduction program 96 spike filter Multibeam Max 61 squat and settlement table See Also draft table statistics Beam Angle Test 81 Hysweep Survey depth change by beam 24 multibeam sounding overlap 24 multibeam vs single beam 24 quality control tests 24 standard deviation by beam 24 Mapper 92 Multibeam Max cell window 77 qual
101. rmation in Multibeam Max Read Parameters The Device Information tab displays settings for each device in your project Select the device of interest from the drop down box at the left You can view the record capabilities that were set in the HARDWARE program s Device Setup at the left You can view or modify the Offsets at the right Any changes you make here will be applied to all currently selected files Note Editing the offsets will affect only the edited data It will not affect raw data 7 04 HYSWEEP Processing 53 Device Information Window Read Parameters Selections Device Info Surrey Info Prezort Advanced Offsets Hypack Max Antenna Offsets Capabilities v Position Starboard P Heading Forward M eave Vertical Po Pitch A Roll EHullibeam Hulpe transducer 3 Sidescan Roll Yaw Pitch Lat 7 inoan uds 3 Survey Information in Multibeam Max Read Parameters Read Parameters Survey Information Tab The Survey Information tab displays some basic project information entered during SURVEY Min Depth deletes all soundings shoaler than the limit Max Depth deletes all soundings deeper than the limit Port and Starboard Angle Limits deletes data from transducers with a beam take off angle greater than the specified limit The Quality Limit deletes all soundings with a quality number less than the limit Read Parameters Selections Device Info Survey Info Pres
102. ro Sidescan and Multibeam alarms are fixed at 10 secs Serial Connection Settings e Port Baud Rate Parity Data Bits Stop Bits Enter your device settings These should be in the information received from the device manufacturer e The Read from File checkbox enables you to simulate data input from this device by reading a file Many times when you are having a problem with a device in the field we will ask you to log some of the output from the device to a file and upload it tous We can then replay the information using the File setting to see what is happening Network device connections In HYSWEEP amp HARDWARE drivers specify the network connection automatically Define the network settings in the Connect Tab 7 04 HYSWEEP Hardwaree 3 HYSWEEP ts Hyeweep Hardware Setup Rezon Seabat Hisy Network HARDWARE Equipment Connect COM Test Offsets Connect v Enabled Ignore Checksum Timeout Interval Dialog Seconds Network Connection Post 1288 Internet Address 127 0 0 1 Reson Seabat 81xx Network If you have a DNS server you can define your destination computer by name or by IP Address If you do not have a DNS server you must include the IP Address If these values are unknown contact Coastal or the device manufacturer for help C on figu rin g Netw or k Hysweep Hardware Setup Atlas Fansweep Network Device Con n ection S Manufacturer Model Connect com Test Offsets Ignore Chec
103. roller Browse WRECKS HSx HYSWEEP SURVEY will play back any ASCII or binary file recorded by HYSWEEP and multibeam files recorded by the HYPACK 8 9 Survey program Select FILE PLAYBACK or the F8 shortcut key to access the Playback Controller Controls Browse Pick a file for playback Pause Temporarily pause playback Play Playback in real time Fwd Forward at 20 x real time Search Activates search dialog You can go directly to a specific event to the next event from your current position in the playback or to a specific time Select choice and define the event or time you are looking for then click Start Search E Playback Search Parameters Event Mext Event 12 14 00 Start Search End Search Close End End playback HYSWEEP Surveye 41 3 Multibeam Processing I Multibeam Post processing Sequence Guides With so many sounding selection and final product programs it can be a bit confusing at first to work out just what your task sequence should be between your raw data and your final product The following flowcharts should guide you along your way All multibeam or multiple transducer data should first be run through a Multibeam Editor we recommend MULTIBEAM MAX to apply tide corrections and edit out bad data The resulting output is XYZ Format files After that you have some choices The Sounding Selection programs MAPPER and SOUNDING REDUCTION
104. rs in these measurements can lead to inaccurate surveys The patch test 1s HYSWEEP Hardware e 9 a data collection and processing procedure to calibrate these angles along with positioning system latency In the PATCH TEST the roll test 1s by far the most important because it is misalignment in the roll direction that leads to the greatest survey errors The roll test always works and gives repeatable results The other tests that depend on accurate positioning latency pitch and yaw do not always work Sometimes they do but don t be surprised 1f you run one of these tests twice and get somewhat different results Use the average in this case We think that drift in GPS positions is responsible 1 Patch Test Procedure 1 Collect survey data in the prescribed pattern 2 Process the data in MULTIBEAM MAX through all three phases of the editing process At this point the Patch Test option will be enabled in the MULITIBEAM MAX Tools menu 3 Run the Patch Test which will calculate offset adjustment values for latency pitch yaw and roll Note The recommended order of Patch Test Processing has been 1 Roll 2 Latency 3 Pitch then 4 Yaw The Patch Test will use each progressive adjustment value to calculate subsequent adjustments It 1s therefore wise to run the calculations in order from the one unaffected by the others to the one affected by all of them Due to improvements in our methods the influence of order
105. rvey e 21 AHYSWEEP Survey Ec Hysweep Survey Offline File View Matrix Targets Corrections Tools Help Depth 23 2 Time E vent 18 32 43 0 Tide Carr 50 0 Draft Corr 0 3 Heave 0 1 Holl 1 34 Pitch 0 30 Heading 31 3 00 Easting e 0750 5 Northing p7391 9 5 C Towfish Info The title bar gives logging and playback status Offline 1s shown when neither logging nor playback is active The current data file is shown when logging or playback is active You can choose to display data relative to the boat or to the towfish by selecting the option at the bottom of the dialog 1 Alarms in HYSWEEP Survey HYSWEEP SURVEY can be configured to continuously check for and notify you of data errors or loss of data input They show green OK yellow careful or red look out depending on status Click the indicator to show status history The Nav MRU Gyro Side Scan and Multibeam alarms at the top of HYSWEEP s main window turn red when no data has been received from the corresponding device for 10 seconds The Devices alarm turns red when no data has been received for a period longer than the Time Out Interval that you set for each device in the hardware setup There are alarms for heave drift excessive multibeam single beam difference and excessive multibeam overlap difference and several other problematic conditions To set up the alarms and limits select VIEW OPTIONS QC Test and choose your alarms and
106. s You can clip sorted XYZ files to fit an area defined by a Border File 1 Create a Border File that outlines the area you want to work with In this example we will include lines 0 to 4 7 04 HYSWEEP Processing 87 Clipping XYZ files with a Border File Before 2 Right click on the XYZ file you wish to clip and select CLIP TO BORDER FILE A file selection dialog will appear 3 Select your Border File 4 Name your clipped survey file The file will be saved with an XYZ extension to your Sort directory and added to your available data files list Clipping XYZ files with a Border File After IV Sounding Selection Programs for Multibeam Surveys HYPACK MAX has two different routines for Sounding Selection for multibeam surveys One may be more appropriate than another depending on your final product Before we go any further let s look at the normal input to the different final product programs 88 e HYSWEEPO Processing 7104 Program Input Files Cross Sections amp Volumes Edited files from the EDITOR program Hyplot Tracklines Edited files from the EDITOR program Hyplot Soundings oorted files from Sounding Selection routine Export Edited files or sorted files TIN Model Sorted files from Sounding Selection routine unless you have a lot of time on your hands A Comparison of Sounding Selection Methods for Multibeam Data The following sections take a closer look at the MAPPER and SOUNDING
107. section by dragging the cursor across the data in the Survey window b Select the Roll tab and accept the default settings Sonar Head 1 will already be selected c Click Start Test PATCH TEST will do the calculations to determine if any offset adjustments are necessary When the calculations are complete the results will be displayed The calculated adjustment will appear under Adjustment It will be used with the Initial Adjustment to calculate and update the Final Adjustment which 1s entered in the Offsets dialog in HY SWEEP HARDWARE 10 Repeat the entire process for each pair of files After the you have completed the first set typically the roll test when you load the next pair of files MULTIBEAM MAX will ask whether you want to apply the previously calculated values to the current portion of the patch test C Adjusting Hardware Offsets Calibration tests calculate adjustments that must be made in your Hardware Offsets settings to collect accurate depth and position data 16 e HYSWEEP Hardware 7 04 The Latency value calculated by the PATCH TEST should be entered into the hardware setup for your GPS to correct timing errors in the system In the HARDWARE program 1 Click on the DEVICE menu and select your position device 2 Click Offsets and enter your latency in seconds 3 Click OK to exit OFFSETS and OK again to exit the DEVICE SETUP The change will be saved automatically when you exit the HA
108. shown below I wonder if the volumes would come out the same 7 04 HYSWEEP Processing e99 TIN Model of the same data shown before using only the nadir vertical beam So the figures show why there is so much interest in multibeam surveying Ifit was cheap and easy we would all be working on multibeam boats and processing multibeam data There must be a catch Well yes I suppose there is You will pay considerably more for a multibeam than for a single beam system But cost justification is usually not the concern of surveyors so let s not worry about that Are multibeam systems easy to use That s a yes and no type of question When everything is working well it is just as easy to collect multibeam as single beam data in many cases easier It s the part about getting things to work well that s a bit harder Also the office people will be working with much more data than they were previously used to Of course the automatic processing tools of HYSWEEP software make it easy to process all this data Really ll Sweep Sonar Systems The fundamental idea behind sweep sonar is this instead of sounding directly beneath the boat as with single beam systems the sweep sonars extend the soundings off to the sides Hence it is possible to sound an area as opposed to a line with a single pass It 1s easy to see now why the terms sweep and swath are used And when the sweep boat returns with some overlap in the ensonified are
109. t be logged for three seconds before and after midnight During this time HYSWEEP SURVEY will close the current data files and open new ones named according to the new date and time FILE HYPACK DATA LOGGER Keyboard Commands Buttons Shortcuts START LOGGING Start Logging Ctrl S END LOGGING End Logging Ctrl E INCREMENT LINE Increment Line Ctrl DECREMENT LINE Decrement Line Ctrl D SWAP LINE Swap Line Ctrl W 7104 Data Logger 1g Data Logger i Control OUT T1053 Hox 2 Start End 3 001 To i RAW 001 1121 H5X T r Besume 001_1121 RAW Logging Options 3 001_1358 Hsx 1405 HS X Hot Logging nm aanre Ter Available Disk You can log data a selection of formats according to the selection in the Logging Options dialog e ASCII HSX Format Default ASCII format with full support of HYSWEEP SURVEY features e Binary Datagrams HS2 format selects the binary format with full support of HYSWEEP SURVEY features e ASCII HYPACK 8 9 Compatible format used by HYPACK 8 9 SURVEY This format should only be selected if recorded files are to be processed with older versions of HY SWEEP post processing or 3rd party software that does not read the updated HSX format The Control buttons effect all data logging in all of the currently active Survey programs VI Logging Options in HYSWEEP Survey 7 04 A Data Logger Select FILE DATA LOGGER or hit F7 and cli
110. t contains minimum depths and the other contains instantaneous depths The original files remain intact Select TOOLS PWC FILE SPLITTER and the PWC File Splitter dialog will appear HYSWEEP Processing e47 PWC File Splitter 3 PWC File Splitter Dialog Splits fles corkanina GTC ISAH data inta bwo One contains minimum depths hin L thee other contains instantaneous depths iret Original RAW Hes are not maodilied 2 Click Start A file select dialog will appear for you to select the log file that contains the data you want to split 3 Select a Log file from the raw or edit folder and click OK The dialog indicates the progress of the process by displaying the name of each file in the catalog as it is affected and Done when the work is complete The PWC File Splitter loads the two new Log files with the original one to your project so they can be enabled and viewed in the Max window C Selecting Sounding Files in Multibeam Max Select FILE OPEN to call up an open dialog The default directory will be the project file MULTIBEAM MAX works with multiple file formats Multibeam data can be read from any of the following e HYPACK Raw Data Multibeam and single beam files collected by the HYPACK SURVEY program Multibeam raw files have the HSX extension e HS2 Format Files edited and saved by MULTIBEAM MAX This format retains all data and can be reloaded for further editing into MULTIBEAM MAX They also ca
111. tandard Color dialog You can adjust the color scheme for your project as you would in HYPACK MAX The dialog in HYSWEEP SURVEY shows an additional option Auto Scale When selected the color range 1s calculated dynamically based on depth statistics The colors can be distributed over a user defined depth range by deselecting this option and setting the minimum and maximum color depth values Standard Color imi Color Settings dialog Color Option v AGB Color C DF Color Spectrum DF Spectrum Relief C Chart 40 09 40 30 Depths 40 51 40 72 Mininnum 28 00 40 93 4114 Maximum 44 00 i Increment 0 21 A1 77 E Invert ARR AutoScale Edit Smooth Apply OF Cancel Oper Save s Help Ill Files and Filenames in HYSWEEP Survey When HYSWEEP amp SURVEY is run in combination with HYPACK MAX it bases data and target file names on the HYPACK names With minor changes of course so the names aren t identical When 32 HYSWEEPO Processing 7 04 HYSWEEP SURVEY is run stand alone it has it s own naming scheme Raw file folder Uses HYPACK raw data folder Catalog Filenames HSX HYPACK catalog name Data Filenames HYPACK data filename HSX Target File Folder Uses HYPACK target folder Default Target Filenames HSX HYPACK target filename Note HSX means HYSWEEP amp SURVEY extension IV Corrections in HYSWEEP S
112. ter the 3 character tag for the adjusted files and click OK to start the adjustment process 7 04 The Data F Mi ym Treue Fie Heb Adjustments Dialog a Hecate Glo a ra Sea ee a dlonie dr mesec 3 Click OK to start and select your raw log file from the file list The individual files will be adjusted and re written with the new extension The adjustments program does not overwrite original raw data files 2 Applying Data Adjustments to Multibeam Data in Post Processing MULTIBEAM MAX has options to modify device offsets in the Device Information option of the Read Parameters The Device Information tab displays settings for each device in your project Select the device of interest from the drop down box and modify the Offsets Any changes you make here will be applied to all currently selected files Note Editing the offsets in this manner will affect only the edited data It will not affect raw data 7 04 HYSWEEP Hardwaree 19 Device Information Head faramerens Window T Antenna Offsets v Position Heading Heare Pitch Holl Multibeam Multiple Transducer Sidescan 2 se ms Bo oo ooo os On Towfish j 20 HYSWEEP Hardware 7 04 2 Hysweep Survey HYSWEEP SURVEY is a multibeam and side scan data collection and logging program Real time displays and quality control testing give on the spot information on bottom conditions an
113. tes data from transducers with a beam take off angle greater than the specified limit Port and Starboard Offset Limits Phase 2 deletes all data that falls outside of the user defined distance from the center beam Spike Limit traverses the soundings in blocks of 16 4 beams x 4 sweeps and deletes soundings deviating from the 16 point average by more than the limit The Quality Limit Phase 2 deletes all soundings with a quality number less than the limit Maximum Bottom Slope Phase 2 deletes all soundings where the slope from the previous sounding exceeds the limit Beware Watch this setting when your data includes side slopes You could delete good data Filter Overhang and Undercut Topography Phase 2 deletes stray soundings that would create these topographical features 7 04 HYSWEEP Processing 63 Search and Filter Options Statistical Tab 64 e HYSWEEP Processing Number of Filter Passes repeats the filtering process according to the number of times entered This is supposed to improve the filtering but the degree of improvement is not what was anticipated Use HYSWEEP Survey Limits The depth and angle limits that are set in HYSWEEP Survey are recorded in the headers of the raw data files and the HS2 edited files Click this button and MULTIBEAM MAX will read the values from the header of the selected files and mark the data that was filtered during SURVEY as filtered in MULTIBEAM MAX The data will rema
114. th Range for Overlap Colors 5 0 Work Units Select survey grid units Meters US Feet or International feet This option is only available when HYSWEEP SURVEY is run without HYPACK MAX Otherwise the selections are disabled and work units are taken from HYPACK GEODESY Multibeam e Minimum Depth Enter minimum depth gate No soundings above this depth are displayed e Maximum Depth Enter maximum depth gate No soundings below this depth are displayed This value also determines the resolution of the saved depth value which is always saved in meters Max Depth Resolution 500 meters 0 01 meters gt 500 meters and 5000 meters 0 10 meters 5000 meters 1 00 meters 28 e HYSWEEP Processing 7 04 7 04 Port Offset Limit Maximum horizontal sounding offset allowed for display port side Starboard Offset Limit Maximum horizontal sounding offset allowed for display starboard side Port Angle Limit Maximum beam take off angle from vertical to the port side Beams at angles greater than this setting are not displayed Starboard Angle Limit Maximum beam take off angle from vertical to the starboard side Depth Range for Overlap Colors When a matrix is displayed in the Overlap method depth differences are color coded from 0 to this value B Multibeam Display Settings in HYSWEEP Survey The Multibeam Display Settings control the style and coloring of the multibeam displays Multibeam Display Tab
115. the reduction has been calculated the right hand side of the window displays several statistics about your proposed reduction Input Points is the number of points in your original data set Output Points is the number of points in your set after the reduction Reduction Time is the amount of time the reduction will take Actual Reduction is the percentage of points that would be discarded Reduction Error Statistics may tell you something if you re a statistician Basically they tell you a little about how much flattening would occur during the process and an approximation of the error introduced If the statistics are not acceptable change your parameters 7 04 4 Sounding Reduction Setup The Setup Window FILE SETUP enables you to set the default values to be displayed in the Soundings Reduction window The options are mostly the same as those in the Sounding Reduction dialog Initialize With gives you the option to choose Last Working Settings or This Setup Default Parameters Default Optimization 100 Mas Distance I 10 Smart Max Distance Reduction Reduction Level v Height of Peaks 0 1 Initialize with C Last Working Settings Cancel 5 Sounding Reduction Example Example The SOUNDING REDUCTION Window Before the Reduction Calculation 7 04 Do a sounding reduction on the Dam7000b xyz file 1n the HYPACK PROJECTS DAM EDIT directory Try the parameters of Maximum Distance 300 an
116. the smaller files are worth the loss in resolution Note SIDE SCAN SURVEY supports logging to XTF format B Matrix Files in HYSWEEP Survey Two of HYSWEEP s most useful features the color coded coverage map and multibeam overlap statistics are available only when a Matrix File is loaded Matrix Files are simply areas divided into cells The files are created in the HYPACK MAX MATRIX EDITOR Matrix files included in the HYPACK Survey design are automatically loaded into HYSWEEP In HYSWEEP amp SURVEY the Matrix menu is used to clear accumulated cell data and select matrix options Files are automatically updated and saved at program close 38 e HYSWEEPO Processing 7104 Matrix Options C Draw Matrix in HYPACK Survey f Draw Matrix in HYSWEEP Survey Restart program after change Calculate Humber of Cells Approx Memory Hh 0 0 t Minimum Soundings C Maximum Soundings C Sounding Average C Overlap Max Min C Coverage Cancel Draw Matrix determines in which window the matrix will be displayed HYPACK SURVEY will draw the matrix in the area map of SURVEY only while HYSWEEP SURVEY will draw the matrix to the Coverage Map If you choose to change this option you must restart the survey programs for it to take effect Note You must also have the Show Matrix option checked in the Coverage Map tab of View Options Cells options enable you to modify the cell dimensions and calculate the eff
117. tion is saved Minimum Maximum Average Nearest to Cell Center or Maximum minus Minimum etc and if it is saved in its actual position or at the center of the cell e If you choose the Average option set the minimum number of points a cell will need to calculate average value Any cells with fewer than the defined number of cells will be left empty 7 04 HYSWEEP Processing 81 File Options XYZ Reduction Tab File Save Options Gave ATZ Reduction Selection C Minimum Median C Maximum C Mode C Range Max Min Mearest to Cell Center Average Strikes Minimum Points for Average Stike Deoth 4 Elevation Most of the Selection options are mostly self explanatory Strikes enables you to save and display only soundings that are above or below a user specified level the Strike Depth Elevation It does not save the sounding but saves the difference between the sounding and the specified level Positioning enables you to save the data in its actual position where possible or in the center of the cell When you save the data in the center of the cell it moves the data not always the best thing to do c Sounding Reduction on XYZ files in Multibeam Max A sounding reduction which provides the same results as the MAPPER program may be done during the save process select FILE SAVE and the File Options dialog will appear e In the Save Tab select one of the XYZ options and the On
118. to set the matrix dimensions and rotation while you choose the cell dimensions The edited data will be filled into the matrix and displayed in the Cell Profile and Survey Windows that follow Set your Search and Filter Options These criteria are used in the next editing phase to search out cells with data outside of the specified limits You can evaluate each instance yourself or instruct MULTIBEAM MAX to delete all points outside the limits Phase Three View and Edit any additional points in the Cell Profile and Survey Windows You can view the data a little more closely and from all angles in these windows The same editing tools used together with the Search and Filter feature are effective in cleaning up any stray points Save the final edited data FILE SAVE will save the data in the format specified in the File Options to the Edit directory unless you choose to perform an XYZ reduction In this case it will be saved to the Sort directory FILE SAVE TO MATRIX saves a filled Matrix File to the project directory 12 Exit MULTIBEAM MAX by selecting FILE EXIT 1 XTF to HSX File Conversion Tool It is simple to convert XTF files to HYPACK HSX files with the XTF to HSX File Conversion Tool This tool can read XTF data from 46 e HYSWEEP Processing Triton the Seabat QINsy the Reson DB to XTF converter Open the converter by selecting TOOLS CONVERT XTF TO HSX FORMAT The conversion dialog will appear 7 04 7 04 XT
119. ttings for the Profile Window are set by selecting VIEW OPTIONS then RANGE SETTINGS and MULTIBEAM DISPLAY C 3D Seafloor in HYSWEEP Survey The 3D Seafloor window shows a three dimensional representation of the aft seafloor The view is through the rear view mirror which is somewhat odd but is the only way to draw these 3Dimensional images effectively Display methods are e 3D Wiggle e Color Wire Frame e Solid TIN e Color TIN shown F11 toggles scrolling on off and is useful to freeze the frame in case something interesting shows up Moving the cursor across the window displays grid position and depth Contacts may be targeted by double HYSWEEP Survey e 23 clicking the object of interest and object size 1s measured by dragging the cursor from point to point 3D Seafloor te 3 D Seafloor Color TIN To show the 3D Seafloor select VIEW 3D SEAFLOOR from the main HYSWEEP SURVEY menu Display settings may be set by selecting VIEW OPTIONS then Range Settings and Multibeam Display D Multibeam Waterfall in HYSWEEP Survey The Multibeam Waterfall is a forward looking representation of the seafloor shown as a gray or color TIN The waterfall is a more traditional display method than the 3D view Multibeam Waterfall F11 toggles scrolling on off and is useful to freeze the frame in case something interesting shows up Moving the cursor across the window displays grid position and depth Contacts may be targeted
120. urvey A Tide Corrections in HYSWEEP Survey HYSWEEP SURVEY gets real time tide corrections from HYPACK SURVEY This is done automatically through the shared memory mechanism B Squat and Settlement Dynamic Draft Corrections in HYSWEEP Survey HYSWEEP SURVEY has two methods for application of dynamic draft correction HYSWEEP amp SURVEY can e Take dynamic draft corrections from HYPACK SURVEY whether you enter them manually or use the draft table This 1s the default setting e Use the Squat and Settlement Table available in HYSWEEP SURVEY To enter a squat amp settlement table select CORRECTIONS SQUAT AND SETTLEMENT and enter the draft correction values in survey units versus speed in knots When a table is entered HY SWEEP SURVEY calculates the dynamic draft correction from boat speed from GPS via HYPACK SURVEY and the table 7 04 HYSWEEP Survey 33 Squat and Settlement Corrections Table te Squat and Settlement Table Speed kts Draft Correction vs Speed 0 40 E 1 0 9 0 Graph Cancel Note If you are using RTK tides with HYPACK which presumably you are since you re reading this you do not need to enter any draft corrections The GPS dll formerly known as the Kinematic dll subtracts the dynamic draft correction to compute the true tide correction Without a draft correction the driver will still calculate a correct chart sounding but the RTK Tide
121. used to track which files have been edited D File Open Options in Multibeam Max File Open Options Once you have selected the files to be included in the edit MULTIBEAM MAX provides you with some options for reading and storing your sounding data These dialogs may also be accessed by selecting FILE OPTIONS after MULTIBEAM MAX has been launched The File Options dialog has two tabs File Open Options Vertical Basis f Depth Elevation Auto Pracessin Enabled Appl Filters Log Edit Transactions to MBE ditlag txt Vertical Basis determines depth or elevation mode where elevation mode will invert the soundings Auto Processing skips phase and 2 editing Tide and Sound Velocity corrections are applied and the soundings are gridded into a matrix The results are displayed in the Survey Profile and Cell windows ready for HYSWEEP Processing e49 Phase 3 editing Check Apply Filters to also edit your data according to the Search and Filter criteria This is the equivalent to the Filter All button in the main toolbar or Run Filters in the Search and Filter Options dialog Log Edit Transactions to MBEditLog txt creates a record of e Files Loaded e Vertical Basis e Correction Files e Read Parameters e Search and Filter Options e Fill Matrix Options e Files Saved E Corrections in Multibeam Max Corrections Dialog 50 e HYSWEEP Processing MULTIBEAM MAX enables you to work in depths or ele
122. value will be different from the conventional tide value C Sound Velocity Corrections in HYSWEEP Survey 34 e HYSWEEPO Processing The sound velocity model is entered or imported using the main menu Corrections Sound Velocity option The model is recorded into the data files for use in post processing Note If there 1s a pre existing Sound Velocity Profile when you enter HYSWEEP SURVEY the Multibeam Alarm will show yellow It s a good idea to verify it is accurate before you begin to collect data The alarm will turn off when you click OK in the Sound Velocity Model 7 04 Sound Velocity Model m Sound Velocity vs Depth 1454 08 1454 35 1454 13 1454 15 1454 18 1454 13 1453 84 1454 05 1453 31 1453 85 1455 1453 92 Average ii 454 15 Units Meters M 5ec C Feet Ft 5ec Delete Row Insert How Graph 1 Swap Columns Reverse Order Import Cancel Clear All Average sound velocity calculated from the model HYSWEEP SURVEY uses this average for display calculations instead of the more time consuming ray path calculations used in post processing Units selects the units of the model Conversion to HYSWEEP SURVEY working units is done automatically e Meters M Sec Depth is in meters velocity is in meters per second e Feet Ft Sec Depth is in feet velocity is in feet per second To enter the model simply start typing into the spreadsheet in increasing depth order To check f
123. vations applying Tide Draft and Sound Velocity Corrections along the way Details about logging data from real time telemetry gauges and manually entering the Tide Corrections are contained in the SURVEY section of this manual The Utilities section describes creating Tide Correction files from harmonic predictions high low water times and heights and tide observations Corrected Depth Tide Correction Raw Depth Transducer Depth Offset Draft Correction Corrected Elevation Tide Correction Raw Depth Transducer Depth Offset Draft Correction If you are working with raw data the Corrections dialog enables you to apply depth tide and sound velocity corrections to your edited data lt Corrections 001 1053 H5z Tide Corrections Tide File 0928 tid Open File Sound Velocity Corrections SW File 328 VEL Echosounder setting Multiple transducer only msec fi eun iY Apply Corrections to Entire Catalog DK Cancel 1 Select your Tide File by clicking Open Tide File and selecting the correct file from the file selection dialog 2 Select your Sound Velocity File in the same manner clicking Open SV File Information on creating a Sound Velocity file can 7 04 7 04 be found in the Single Beam Processing chapter of this manual under Sound Velocity Corrections program 3 Set the Echosounder setting which tells MULTIBEAM MAX what sound velocity setting the transducers wer
124. will also need the same latency value as you have in HYPACK HARDWARE They do not affect each other HYPACK HARDWARE offsets will be applied to single beam data while HYSWEEP HARDWARE offsets will be applied to multibeam data 2 Multiple Transducer Offsets If the device is a multiple transducer sonar system Multiple Transducers is enabled Click it to show the Multiple Transducer Offsets form 7 04 HYSWEEP Hardware e 7 Multiple Transducer Humber of Transducers 8 meae sad Fomei a veh Rot iter Offsets E OF Cancel The offset form for multiple transducer systems 1s self explanatory Enter the number of transducers then the position offsets of each transducer The roll and pitch offsets are included but seldom used 3 Editing Device Settings in HYSWEEP Hardware You can easily modify HYSWEEP amp HARDWARE settings by selecting the device name in the Installed List and changing the entries in associated dialogs The new settings will be saved to the Hysweep ini file when you exit HYSWEEP amp HARDWARE VI Calibrating your System A Bar Check The Bar Check routine enables you to calibrate your echosounder and save documentation of the process 1 Open the Bar Check program by selecting TOOLS BAR CHECK The Bar Check window will appear 8 HYSWEEP Hardware 7 04 7 04 Bar Check Window B Patch Test s Bar Check Filters Depth Gate I E
125. window will appear 2 Select FILE OPEN or click the icon and choose the file you wish to reduce from the file selection dialog that appears If the Smart Max Distance is checked the Max Distance in the selected file will be displayed The number of Input Points will be displayed under Reduction Status 3 Enter your Reduction Parameters Click FILE RUN REDUCTION or click the icon The reduction will be calculated and the related statistics will be displayed on the right hand side of the screen If you are not satisfied with the resulting statistics repeat the same steps beginning with selecting FILE OPEN and changing your parameters until you are satisfied 5 Save your Reduced File HYPACK will suggest the name and directory for your reduced file Select FILE SAVE or FILE SAVE AS or click the icon The reduced set will be saved and you will return to the main window 2 Sounding Reduction Parameters The Reduction Window The program reads the soundings and connects them to each other forming triangular areas tetrahedrons You may then define the Maximum Distance you wish to allow between points in your reduced data set and the Maximum allowable angle between these connecting lines The larger each of these numbers 1s the greater reduction may occur and the fewer small variations in readings will remain in your data set Sounding Reduction File Help Eg E Parameters Reduction Status Max D
126. you are using dual frequency data select FILE OPTIONS for additional choices MAPPER File ESiMapper File Options Options Sounding Selection DK C Use Depth 2 Use Both Sounding Selection instructs the MAPPER program to use either Depth 1 Depth 2 or Both when filling the matrix b Mapper Color coding Select OPTIONS COLOR CODING to access the Color Settings Dialog This is the same dialog that is used to set the depth colors in HYPACK MAX See Sounding Color Settings in HY PACK MAX in the Introduction for detailed directions Any changes made here will be displayed in the legend displayed in the MAPPER dialog They will also affect HYPACK MAX and SURVEY These settings do not affect the display of seabed identification colors c Mapper Matrix Setup Matrix Setup enables you to edit the matrix parameters The number of matrix cells and the approximate memory required to use a matrix with the listed specifications in the MAPPER process can be calculated and displayed by clicking Calculate If you are not satisfied with the options you can change the specifications for the matrix and recalculate Note If the Matrix is changed data must be re read into the matrix using the OPEN SOUNDINGS menu item The Matrix options Matrix dialog in the MAPPER OPTIONS Menu Corner A Corner Y Lalculate Matrix Length Calculate Matrix Width Humber of Cells Cell Length Approx Memory Required Cell

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