RF Editor User Manual ver. 3.0 - X
Contents
1. Search 11 Send io Spectro X see Spactro X on page 11 12 Edit Header see Edit Header on page 11 Specifications Bandpass 20 low pass 10 Band pass 30 low pass 15 Band pass 40 low pass 20 Filtering Fs Sample Rate Modifier Types Pass Band Ripple lt 0 001 dB Freq where rejection gt 0 001 dB lt Pass Band lt Freq Where rejection gt 0 001 dB Stop Band Rejection gt 80 dB Freq where rejection gt 80 dB Band Fc ef n fe some Band Pass Pass Band 0 05 fs 0 1 Fs Stop Bande 0 1 Fs Bandpass 10 Band stop has same performance by inverse shape lowpass 5 mmm Pass Band 0 10 fs 0 2 Fs Stop Bande 0 2 Fs Band stop has same performance by inverse shape Pass Band 0 15 fs 0 3 Fs sStop 0 3 Fs Band stop has same performance by inverse shape Pass Band 0 02 fs 0 4 Fs Stop Bandz 0 4 Fs Band stop has same performance by inverse shape Filter Parameters Filter Type Band Pass Band Stop Start Frequency Hz Stop Frequency Hz Waveform Editing Interpolation Decimation Frequency Shifting Signal Duration Signal Level Attenuation Gain Ramp InjOut Repeating Ramp User specified span change integer ratio required between inital and final spans Replication and offset within capture span from original frequency by user specified amount 1Hz resol2. HAPTER INTRODUCTION The RF Editor is graphical signal editing tool that allows the manipulation of amp Q signal files Some applications that RF Editor is capable of Electronic Warfare Designs robust battlefield or region specific RF environments for simulation and testing by processing broad segments of spectrum Wireless Communications Build new signals for testing and development of satelite and terrestrial voice data and telemetry equipment and networks using captured or mathematically generated communication signals Spectrum Management Create scenarios to simulate changes in the RF environment by altering the spectrum and testing them in the laboratory Radar Use existing libraries of signals to replicate virtually any existing or proposed system for either testing or live use Note self guided demonstration of key RF Editor functions including sample files is available for down load at www xcomsystems com resource Download Softwore Main Screen Controls Item Description 1 Toolbar 2 Waveform Library 3 Start Time of he time ine lt End Time ofthe time Ine 5 __ Frequency Span Bandwidth Editing Track see Creating Waveform Time Segments on page 5 7 __ Operational Mode see Operational Modes on page 5 8 __ Snap to Grid checkbox __ Modify File see Modifying Files in the Directory on page 8 10 Evaluate
3. co Bird Technologies Company lt RF EDITOR PROGRAM VERSION 3 0 2 1 Copyright 2013 by Bird Electronic Corporation Instruction Book PN 920 RF EDITOR Rev Hives ABOUT THIS MANUAL This manual covers the operating and maintenance instructions for the following models WC RF EDITOR Changes to this Manual We have made every effort to ensure this manual is accurate If you discover any errors or if you have suggestions for improving this manual please send your comments our Sclan Ohio factory This manual may be periodically updated When inquiring about updates to this manual refer to the part number and revision on the title page Definitions Introduction Describes the features of RF Editor lists controls and indicators control tab description and set up information Operation Describes the functionality of RF Editor and how to perform searches cap tures and playbacks Table of Contents About This Manual 779 Bars Changes to this Manual i Definitions Chapter 1 Introduction Main Screen Controls Specifications Chapter 2 Operation Settings Operational Modes Tektronix Agilent Creating Waveform Time Segments Building New Waveforms Build RF File Stitch File Editing Files on a Track Modifying Files in the Directory 10 Change Span 10 Filters 10 Frequency Shifting n Advanced Editing n Modify Groups of Files 2 Edit Header 2 Integration with Spectro X C
4. ers Lists the markers in the fie Figure 13 Edit Header Integration with Spectro X RF Editor is integrated with Spectro X This allows the user to highlight any waveform in the RF Editor Waveform directory list and with a single mouse click have that entire file or a portion of it immediately available for viewing and performing carrier and waveform searches in Spectro X Refer to the Spectro X manual
5. mount of frequency within the span of the signal fil Figure 10 Frequency Shifting Advanced Editing RF Editor also meets the need for higher precision editing and saves time through its Advanced Modify window Multiple simultaneous operations can be performed the new fle saved and immediately availabe for addition to an RF Editor wave form time track Input Sets the read directories for the data Output Sets the write directories for the Q data Modifications Individual modifiers that can be separately adjusted Frequency Shift By Shifts the waveform by x Hz within the span Decimate By Removes sample from waveform Interpolate By Replicates samples in the waveform Filter Specifies the filter percentage as a function of the file sample rate Interpolate By Replicates samples in the waveform Decimate By Removes samples fram the waveform Frequency Shift By Shifts the waveform by x Hz Figure 11 Advanced Editing HiT e SE el Modify Groups of Files Allows for the simultaneous modification of multiple files within a chosen directory See Modifying Files in the Directory on page 10 Figure 12 Modify Groups Dialog Edit Header Span Changes the Frequency Span Center Frequency Changes the Center Frequency Scale Factor Sets the scale factor RBW Sets the Resolution Bandwidth Protect 0 marks thatitis not write protected 1 marks that tis write protected Mark
6. ose of unchecking the Maintain Width box the file segment specify by the Start in File and End in File wil either be shortened or lengthened by repeating by the difference of End of Time minus Start on Track Attenuation Gain Adjusts the amplitude of the fle Note Entera positive number less than 1 as this process iso multiplication opera ton ofthe 8 Q waveforms and results voltage nota power gain Example An attenuation factor of 0 0001 results in a 80dB shift in amplitude 20l0gX Note Doubling the modifier will raise the amplitude by a factor of 6 dB per occurrence Reducing the modifier by 2 will lower the amplitude by 6 dB per Ramp In Out Samples Specify the number of samples over which a linear ramp is applied Ramp magnitude transitions from O to max sample value lin early over the specified number of samples Ramp increases at the beginning of the selected file and decreases at the of the file Repeat Ramp Samples Specifies the number of samples over which a linear ramp is applied to the end and beginning of concatenated files that result from the lengthening of the time duration of a file as specified by Start on Time and End on Time Attenuation File Browse or type in the file location and name of the file that contains sampled values single precision floating point values of a ramp func tion that is not linear to be applied to the number of file samples specified in Ramp In Out or Re
7. peat Ramp Attenuation Sample Rate Enter the sample rate used in the Attenuation File 4 Click on Apply 5 Click on Done Modifying Files in the Directory Change Span Select the correct span Left click on the desired file Click on the Modify File button Select one of the following modifiers from the drop down menu Changes frequency span of the file Filters Note See Specifications on page 3 Apply band pass filters ta waveform segments from the file list with a 388 pass band that is specified as a menu selected percentage of the capture BW of the file containing the signal Note fthe fle was captured by the IQC5004 the capture BW equals the span setting ofthe spectrum analyzer used as the RF front end RF Editor allows the signal span to be reduced by a simple dialog box decimation operation Band Pass Passes frequencies within a certain range and rejects the others Band Pass Filter Sets the width of the pass band Start Frequency Sets where the pass band will begin End Frequency Sets where the pass band will end Figure 9 Band Pass Filter Band Stop Passes frequencies except those in a certain range Band Stop Filter Sets the sizeof the stop band Start Frequency Sets where the stop band will begin End Frequency Sets where the stop band will end Frequency Shifting Spectrum can be replicated and offset from the original by a user specified a
8. rier Search and Pulse Search results contain durations the Waveform Search results do not When using Carrier Search or Pulse Search results the time entered in the Duration field will be added use a negative number to decrease the amount of time to each result s duration When using the Waveform Search the amount entered in the Duration field will serve as the duration for each result Figure Carrier Search Hua Hiis 1 Highlight a desired file 2 Goto Build 3 Select Stitch File Deselect the markers file segments that are not wanted in the worksheet 5 Click on Create File Figure 5 Stitch File Dialog Figure 8 Stitch File Spectrogram Editing Files on a Track file from the file lst onto a time track Right click on the file Modify any of the following parameters Delete Removes the file from the track Start in File Start point of a sample in seconds End in File End point of a sample in seconds Note These allow the user to specify the portion of the that will be used or wil be the target of the selected functions Track Sets the track that the file will be located in Note Any drag overiay will result a width change Start on Track Sets the Start Time on the track End on Track Sets the End Time on the track Note Start and End Times will correlate to each other unless Maintain Width checkbox unchecked Note In the c
9. tilize either type of segment designation search results or markers inthe Stitch Function If RF Editor stitches using markers then the new file will contain the segments delineated by the markers and the segments willbe concatenated with no blank time between them A stitched file using search results wil result in something slghty different Example A capture file of 100 ys in length is searched for carriers with the criteria of power levels above 1 dBm Further assume there are three time segments in which carri ers meet this threshold The first segment occurs in the file from time 1 ys to 5 ys The se ond segment occurs during the file time from 10 to 12 ys and the third from 15 ys to If these search results are brought in to the RF Editor Stitch Function and the first and third search results are checked as the ones to be stitched then the resulting file will be 25us long The first microsecond of the file will contain zeros no spectrum File time Ins 1o 5 us will contain whatever was in the searched file during that time period There will be zeros from file time sample to 15 and it will contain whatever was in the searched file from time 15 to 25 us The Stitching function can use the results from Carrier Search Waveform Search or Pulse Search The time value entered in the Offset field will be used to adjust the Start for each search result Entering a negative value will the startin time While Car
10. ure 2 2 Select the span to work within 3 Dragrand drop a file from the directory onto one of the timeline tracks Note A callout will specify where along the track timline the file wil be set Edit the file if needed See Editing Files on a Track page 9 5 Repeat Steps 2 and 4 for any other files on any of the 10 time tracks 6 Gato the Build menu and select Build RF File Figure 2 Creating Waveforms Stitch File Stitching is a process that concatenates segments of a spectrum capture file which have been selected by the user Iteffectively provides a way to cut out undesired portions of a file and reconnect the remaining segments Segments can be delineated in two ways The frs is file markers inserted in the file during receipt and process ing by the IQC500A of TTL level pulses presented to either ofits two trigger input BNC connectors Spectro X search results can also be used to denote segments Example A carrier search is conducted in Spectro X looking for carriers in a capture file that exceed 40dBm in power and using search pruning have a duration not exceeding 50 microseconds See Spectro X User Manual and Spectro X Self Guided Demo manual both available for free download at www xcomsystems com Spectro X can export the results of this pruned search to a file that delineates each portion of the capture file in which these user selected criteria have been met and in a manner usable by RF Editor RE Editor can u
11. ution User can lengthen or shorten time duration of sample file single sample time resolution Lengthening accomplished by segment repetition Scalar multiplier on amp magnitudes If resultant magnitude gt 32 767 all sample fles are scaled by fixed amount to maintain relative levels Then multiplier is applied to selected fie Application of linear magnitude ramp up to beginning of file or ramp down to end of fle Max ramp magnitude equals the difference between max sample amplitude value and zero User specifies ramp duration in samples an option the user can create a ramp function fle the shape of which is stored as single precision float sample values at a specific sample rate Same as Ramp In Out but applied to the end of and beginning of adjacent fle segments that have been concatenated Stitch Builds an output fie by concentrating selected segments ofa larger flo that are delineated by markers Time Tracks Maximum of 10 File Formats Input amp Output Hardware Windows 7 PC 64 bi 10 Mbyte on OS Drive USB 3 0 Requirements Gr eSATA mouse or trackpad CHAPTER 2 OPERATION Settings Configures the location of the and Q data file directory that will be utilize Note defoult the Lnd Q file reside in the same directory With the Match Q directory to I box checked any changes to the directory will automatically be reflected in the Q director
12. y as well Uncheck the Match Q directory to if the land Q files are in diferent directories or drives Figure Settings Dialog Note fthere are issues with files not appearing in the it uncheck the Show Only Matching Spans box to see all Q file pairs in the selected directory Operational Modes Operational Mode may be selected Depending on the span being worked with one of these operational modes must be selected Tektronix Works with the spans and sample rates dictated from the digital Q outputs from the Tektronix Real Time Spec trum Analyzer captured with IQCS00A Agilent Allows the user to arbitrarily select the exact span bandwidth with corresponding sample rate to match the output from Agilent signal analyzers Cre Waveform Time Segments Any X1Q file may be used in RF Editor Those files can be dragged onto any of the 10 time tracks Waveform segment duration can be extended and by applying user selected frequency domain functions RF Editor allows the user to rapidly build complex new spectrum in the time domain and stack carriers in the frequency domain simultaneously When the segments are aligned as desired on the time tracks RF Editor can fully combine the waveform segments into a new waveform with a single mouse click Building New Waveforms Build RF File 1 Set the time scale of the file Note Start Time and End Time at top of window in Fig
Download Pdf Manuals
Related Search