Product Brochure (english) für GNSS Simulator
Contents
1. Su DE amp SCHWARZ CClOl il UCIICId The new reference satellite simulation n Product Brochure 06 00 GNSS Simulator in the R amp S SMBV100A At a glance Whether in the R amp D lab or in production the global navigation satellite system GNSS solution for the R amp S SMBV100A sets new standards in the field of satellite simulation It supports all possible scenarios from simple setups with static satellites all the way to flexible scenarios generated in realtime with up to 24 dynamic GPS Glonass Galileo BeiDou and OZSS SBAS satellites A number of standard tests are available for characterizing the performance of a GNSS receiver e g time to first fix TTFF and location accuracy Test runs often include an entire series of tests each with a different scenario Therefore satellite simulators that allow users to simulate a wide variety of scenarios are ideal for this purpose This is where the flexibility of the GNSS solution for the R amp S SMBV100A stands out Only a few keystrokes are needed to generate complex scenarios unlimited in time with up to 24 satellites including hybrid GPS Glonass Galileo BeiDou and OZSS SBAS constellations Users can select the almanac file as well as the geographic position and both stationary positions and moving scenarios that simulate the movement of receivers along any custom route are possible The signal strength of individual satel lites can be c2. The R amp S SMBV100A enables realistic simulation of ve hicle movement Based on the vehicle type as well as the trajectory to be simulated the vehicle attitude is precisely modeled and the corresponding roll bank pitch elevation yaw heading angles are simulated In conjunction with the defined antenna pattern the exact vehicle attitude de termines the signal strength and visibility of the arriving signals For example signals at certain roll bank angles are Urban canyon simulation obscured by an aircraft s wings Urban canyon simulations with multipath and onl 2 mH reflection signal obscuration 2 A In many cases the satellite signals do not reach the re w ceive antenna directly Instead they are reflected by build ings trees or the ground Compared to the direct signal multipath signals of this kind arrive later at the antenna and exhibit loss which can cause significant positioning errors The magnitude of such positioning errors ultimately depends on the multipath characteristics and especially the signal processing in the receiver To efficiently test a receiver s internal multipath mitigation techniques highly realistic and reproducible simulation of multipath signals is mandatory Reflection LOS only LOS and o0000000000 200000000000 OOOOOOOO0OO0O poo ooooDooo0000a o0o0o00000000 pooo0oo0oo0o0o0o0oo0oo0oa0 o oo000ob0
3. 2 64 Res Start Frequency 1 575 420 035 00 GHz Res Start Chip Rate 1 023 000 02 MHz Specifications in brief Specifications of the full featured GNSS simulator in brief General settings Frequency Output level GNSS hybrid configuration Simulation modes Dynamics Pseudorange error RMS Max relative velocity Max relative acceleration Max relative jerk GPS R amp S SMBV K44 GPS RF bands GPS P code R amp S SMBV K93 GPS F bands alileo R amp S SMBV K66 alileo F bands lonass R amp S SMBV K94 onass a hv hei 2 F bands eiDou R amp S SMBV K107 eiDou F bands QZSS R amp S SMBV K105 QZSS 20 WB 2 RF bands SBAS R amp S SMBV K1 10 SBAS RF bands Assisted GNSS R amp S SMBV K65 K67 K95 A GNSS test scenarios Generation of assistance data content format RINEX import based on RF band and GNSS hybrid configuration user selectable in entire frequency range based on power mode and individual satellite power parameters user selectable in entire output level range of the R amp S SMBV100A hybrid GNSS constellation e g 2 GPS satellites 2 Glonass and 2 Galileo satellites possible if R amp S SMBV K44 R amp S SMBV K94 and R amp S SMBV K66 are installed static mode auto localization mode user localization mode 0 01 m 599 m s or 10000 m s 1600 m s 400 m s as impulse 6 satellites in line with ICD GPS 200 revision D EVEIA
4. 6 satellites in line with ICD GPS 200 revision D antispoofing disabled L1 E1 L2 6 satellites in line with OS SIS ICD E1 band Lae 6 satellites in line with ICD GLONASS Version 50 L1 E1 L2 6 satellites in line with BDS SIS ICD B11 1 0 ILE 2 6 satellites GPS C A and OZSS C A in line with IS OZSS V1 5 L1 E1 6 satellites GPS L1 C A and SBAS L1 C A in line with DO 229D LWAE predefined A GPS A Glonass test scenarios for GSM 3GPP FDD 3GPP2 and EUTRA LTE user definable almanac ionosphere navigation UTC and acqui sition files in comma separated values CSV format for navigation file also in standard RINEX format ephemeris subframes can be configured manually or imported from a RINEX file Rohde amp Schwarz GNSS Simulator in the R amp S SMBV100A Vector Signal Generator 19 Specifications of the full featured GNSS simulator in brief GNSS extension to 12 satellites R amp S SMBV K91 GNSS extension to 12 satellites GNSS extension to 24 satellites R amp S SMBV K96 GNSS extension to 24 satellites GNSS enhanced e g moving scenarios multipath R amp S SMBV K92 Moving scenario available in auto localization mode and user localization mode supported formats Waypoint smoothing Realtime waypoint feed Atmospheric configuration simulation of up to 12 GNSS satellites e g 8 GPS and 4 Galileo satellites if R amp S SMBV K44 and R amp S SMBV K66 are both installed or 1
5. Manufacturers who integrate GNSS modules into mobile phones or car infotainment systems have to test GNSS functionality in addition to their product s main functional ity Even increasing numbers of chips in GNSS standalone devices are being designed to handle multiple standards At the very least they often support Wi Fi and Bluetooth for updating maps or swapping route data This is where users particularly profit from the versatility of the R amp S SMBVI1OO0A It allows them to test a range of functions with a single instrument because in addi tion to GNSS signals the R amp S SMBV100A can option ally generate standard compliant signals for all important digital communications standards LTE HSPA WCDMA WiMAX GSM WLAN and radio standards DAB Sirius XM Satellite Radio HD Radio With the internal baseband generator R amp S SMBV B10 all settings can be made directly on the instrument with no external software This is especially advantageous in R amp D applications where users need quick access to parameters without time intensive recalculation of waveforms The R amp S SMBV100A can also play back precalculated signals which are often used in production applica tions For all of the standards listed above the external R amp S WinlOSIM2 software provides options that allow standard compliant waveforms to be generated with only a few keystrokes 30 00 The R amp S SMBV100A optionally
6. Multistandard GNSS receivers are constantly increasing in importance This is why the R amp S SMBV100A was designed to simultaneously generate GPS Glonass Galileo BeiDou and OZSS SBAS signals in hybrid constellations The R amp S SMBV100A simulates the movement of satellites in orbits according to a real almanac file containing real navigation data Any SEM or YUMA almanac file can be loaded into the R amp S SMBV100A for this purpose The user can define any start time or date as well as any geographic position for either a stationary or a moving scenario A moving scenario can be defined as any route such as a drive through downtown Rome The path trajectory is specified either with a simple waypoint file or by importing NMEA files Satellites Power Tuning The R amp S SMBV100A generates hybrid GPS Glonass Galileo BeiDou and QZSS satellite constellations with minimum posi tion dilution of precision PDOP Faster testing with GNSS signal generation in realtime While other GNSS simulators in this performance and price category can merely play back precalculated signals the R amp S SMBV100A actually generates signals in realtime All parameters can be set internally in the instrument effectively eliminating the need for time intensive recalcu lation of the signal using external PC software As a result users can change settings on the fly which allows them to quickly and easily test the performance of a receiver
7. Vector Signal Generator 15 BeiDou R amp S SMBV K107 option 1 Simulation of up to 6 BeiDou satellites at frequencies B1 and B2 1 Static mode and localization mode 1 User definable almanac file with real navigation data 1 D1 and D2 navigation messages for MEO IGSO and GEO satellites respectively 1 User definable location and start time 1 Automatic setup of BeiDou scenario with optimum satellite constellation 1 Unlimited simulation time with automatic on the fly exchange of satellites 1 Dynamic power control of individual satellites in realtime 1 Hybrid GNSS satellite constellations with up to 6 satellites requires the R amp S SMBV K44 GPS R amp S SMBV K66 Galileo R amp S SMBV K105 OZSS R amp S SMBV K110 SBAS and or R amp S SMBV K94 Glonass option QZSS R amp S SMBV K105 option 1 Simulation of GPS C A and OZSS C A satellite signals with up to 6 satellites at frequency L1 1 Static mode and localization mode 1 User definable almanac file GEM YUMA with real navigation data 1 User definable location and start time 1 Automatic setup of hybrid GPS QZSS scenarios with optimum satellite constellation 1 Unlimited simulation time with automatic on the fly exchange of satellites 1 Dynamic power control of individual satellites in realtime 1 Hybrid GNSS satellite constellations with up to 6 satellites requires additional R amp S SMBV K66 Galileo option and or R amp S SMBV K94 Glonass option and or R amp S S
8. amp S SMBV K66 R amp S SMBV K107 R amp S SMBV K105 and R amp S SMBV K110 already support a number of R amp D applications For example when integrating GNSS mod ules into mobile phones these options allow complete receiver tests such as TTFF under cold warm or hot start conditions location accuracy and reacquisition time with up to 6 dynamic satellites Installing the GPS Glonass Galileo BeiDou and or OZSS SBAS options together in a single instrument permits hybrid constellations with up to 6 satellites for easily carrying out tests on multistandard receivers By adding the R amp S SMBV K92 software option the existing solution can be expanded to handle the above tests in a moving scenario instead of a static scenario to perform the tests under less than ideal transmission conditions e g in a multipath environment or to use the external trajectory feed to set up hardware in the loop tests The R amp S SMBV K91 software option allows the number of satellites to be increased up to 12 Using the R amp S SMBV KY9G software option even 24 satellites can be simulated simultaneously Other software options are available to flexibly extend the configuration capabilities of the user environment accord ing to test requirements The R amp S SMBV K101 option allows users to configure and simulate an urban environ ment containing buildings for which signal reflections and obscuration are automatically calculated and simulat
9. up to 12 satellites gen erating both the C A and the P code signal The signal generator automatically makes the necessary settings for the different code rates All receiver tests in all modes of operation static auto localization user localization as well as moving receiver tests are fully supported in con junction with P code simulations The R amp S SMBV100A also supports pure P code signals for testing military GPS receivers The R amp S SMBV100A supports simulations with high sig nal dynamics even in the standard version Speeds of up to 599 m s and accelerations of up to 160 g can be simu lated for a moving user For special A amp D applications the available speed range can be extended to 10 000 m s using a hardware option1 This makes it possible to simu late movements of supersonic and hypersonic aircraft for example Another A amp D application involves the simula tion of spinning vehicles which is also possible with the R amp S SMBVI1OO0A In addition the R amp S SMBV100A sup ports ground based augmentation system GBAS simula tions by providing a VHF signal containing GBAS messag es that can be fed to a GBAS receiver under test 1 May be subject to export restrictions All currently defined GPS scenarios for A GNSS test cases are imple mented in the R amp S SMBV100A Support of hardware in the loop applications through realtime external trajectory feed The R amp S SMBV100A can simulate a moving
10. 000b0 jo OOOOOOOOOO0D o oo0000000000 20000000000 GPS Obscuration and Auto Multipath ype User Defined hd Near Environment Land Mobile Multipath Physical Model Obscuration amp Multipath LMM File nut_Street_Dense_Urban Resolution 5 I 3D View Configuration of a land mobile multipath environment Line of sight signals echoes and signal 20 obscuration can be configured as a function of the signals azimuth and elevation angles Rohde amp Schwarz GNSS Simulator in the R amp S SMBV100A Vector Signal Generator 9 The R amp S SMBV100A offers extensive configuration capabilities for simulating multipath signals A number of suitable models are available ranging from simple manual definition of multiple indirect paths per satellite signal to automatic generation of ground reflections and simula tion of complex multipath environments including signal obscuration Simulation of urban canyon environments also plays a key role because signal availability and signal quality in these canyons are heavily affected by multipath propagation and obscuration The R amp S SMBV100A offers a selection of preconfigured Configurable noise and interference simulation Since the R amp S SMBV100A can be equipped with an inter nal noise generator defined noise can be superimposed on the GNSS signals Alternatively the same device can be used to simulate a CW interferer with configurable spacing from
11. 2 C A P satellites if R amp S SMBV K44 and R amp S SMBV K93 are both installed simulation of up to 24 GPS C A Galileo and or Glonass satellites e g 12 GPS C A 8 Galileo E1 and 4 Glonass satellites if R amp S SMBV K44 R amp S SMBV K66 and R amp S SMBV K94 are also installed minimum duration of 12 hours before waypoint repetition up to 4 days if R amp S SMBV K511 is installed up to 16 days if R amp S SMBV K512 is installed CSV NMEA proprietary trajectory and vehicle dynamics smoothing based on a selected vehicle description file hardware in the loop realtime feed of vehicle motion data streaming rate up to 100 Hz 10 ms system response delay configuration of the ionospheric navigation parameters as they will be transmitted in the navigation message ionospheric and tropospheric models used in channel simulation Multipath satellite taps can be defined separately for each satellite additional time shift power Doppler shift and carrier phase can be defined separately for each satellite tap Channel budget GPS Glonass Galileo BeiDou QZSS SBAS Number of multipath taps Logging of simulation data GNSS extension for obscuration simulation and automatic multipath R amp S SMBV K101 available in auto localization mode and user localization mode Obscuration and automatic multipath Land mobile multipath available for pedestrians and land vehicles Number of channels Update rate depends on sim
12. 284 22 and www rohde schwarz com Your local Rohde amp Schwarz expert will help you determine the optimum solution for your requirements To find your nearest Rohde amp Schwarz representative visit www sales rohde schwarz com Rohde amp Schwarz GNSS Simulator in the R amp S SMBV100A Vector Signal Generator 23 Service that adds value Worldwide Local and personalized Customized and flexible Uncompromising quality Long term dependability About Rohde amp Schwarz The Rohde amp Schwarz electronics group offers innovative solutions in the following business fields test and mea surement broadcast and media secure communications cybersecurity radiomonitoring and radiolocation Founded more than 80 years ago this independent company has an extensive sales and service network and is present in more than 70 countries The electronics group is among the world market leaders in its established business fields The company is headquartered in Munich Germany It also has regional headquarters in Singapore and Columbia Maryland USA to manage its operations in these regions Sustainable product design 1 Environmental compatibility and eco footprint 1 Energy efficiency and low emissions 1 Longevity and optimized total cost of ownership Certified Quality Management Certified Environmental Management ISO 9001 ISO 14001 Rohde amp Schwarz GmbH amp Co KG www rohde schwarz com
13. BV100A makes it possible to model such influences Atmospheric influences multipath propaga tion and signal obscuration due to buildings antenna pat terns and vehicle movements can be easily configured and simulated In this way complex yet reproducible scenarios can be created to completely characterize a GNSS receiver under test Simulation of atmospheric effects The R amp S SMBV100A is capable of simulating delays due to ionospheric and tropospheric influences The user can adapt modify or deactivate such delays using the corre sponding configuration parameters Customizable antenna characteristics Receive antennas generally do not exhibit an omnidirec tional reception pattern Instead the reception pattern de pends on the signal s angle of arrival Using the R amp S SMBV100A antenna patterns can be user defined as a function of the azimuth and elevation of the arriving signals The antenna gain can be configured and changes in the signal s phase angle can be taken into account Moreover it is possible to configure signal ob scuration caused for example by aircraft wings or within a vehicle due to vehicle body parts The antenna can be positioned at any point on the vehicle relative to the ve hicle s center of mass Simulation of realistic trajectories with consideration of vehicle attitude and signal obscuration due to vehicle body parts ha Realistic vehicle dynamics including attitude simulation
14. MBV K107 BeiDou option 1 Requires the R amp S SMBV K44 GPS option SBAS R amp S SMBV K1 10 option 1 Simulation of GPS C A and SBAS C A satellite signals with up to 6 satellites at frequency L1 1 Static mode and localization mode 1 Support of EGNOS WAAS MSAS regional systems with up to 5 SBAS PRNs per system 1 Support of ranging correction and integrity services 1 Support of user definable SBAS configurations with XML formatted files and editing function for the graphical user interface 1 Support of raw daily SBAS navigation data available on the EGNOS and WAAS FTP servers 1 Unlimited simulation time with automatic on the fly exchange of satellites 1 Dynamic power control of individual satellites in realtime 1 Requires the R amp S SMBV K44 GPS option 16 GNSS extension to 12 satellites R amp S SMBV K91 option 1 Simulation of civilian signals from up to 12 GNSS satellites 1 Requires the R amp S SMBV K44 R amp S SMBV K66 R amp S SMBV K94 R amp S SMBV K105 OZSS R amp S SMBV K110 SBAS and or R amp S SMBV K107 option GNSS extension to 24 satellites R amp S SMBV K96 option 1 Simulation of GPS Galileo Glonass BeiDou OZSS and or SBAS signals from up to 24 GNSS satellites 1 Enhances the multipath budget of GPS C A Galileo Glonass BeiDou OZSS and or SBAS signals to 24 requires additional R amp S SMBV KQ2 option to enable multipath simulation capabilities 1 Requires the R amp S SMBV K91
15. Regional contact 1 Europe Africa Middle East 49 89 4129 12345 customersupport rohde schwarz com 1 North America 1 888 TEST RSA 1 888 837 87 72 customer support rsa rohde schwarz com 1 Latin America 1 410 910 79 88 customersupport la rohde schwarz com 1 Asia Pacific 65 65 13 04 88 customersupport asia rohde schwarz com 1 China 86 800 810 82 28 86 400 650 58 96 customersupport china rohde schwarz com
16. a pattern R amp S SMBV K102 option 1 User definable models for antenna patterns and vehicle body masks 1 Predefined body masks for land vehicles ships aircraft and spacecraft 1 Automatic realtime update of satellite power and carrier phase depending on the antenna pattern and attitude parameters in auto localization mode 1 800 Hz satellite power and carrier phase update rate following antenna pattern 1 Automatic attitude extraction from motion heading for automotive environments 1 Simulation of up to four antenna patterns body masks for a selected vehicle and their body offsets to the vehicle 1 Realtime synchronous switch between antenna patterns by means of scheduling 1 Requires the R amp S SMBV K44 R amp S SMBV K66 R amp S SMBV K94 R amp S SMBV K105 R amp S SMBV K1 10 and or R amp S SMBV K107 option Rohde amp Schwarz GNSS Simulator in the R amp S SMBV100A Vector Signal Generator 17 R amp S SMBV100A with R amp S SMBV P101 GNSS production tester The R amp S SMBV P101 GNSS production tester was designed especially for GNSS chipset testing and speed optimized production testing of GNSS receivers It supports GPS Glonass BeiDou and Galileo The GNSS production tester also supports additional measurements for characterizing GNSS chipsets It provides flexibly customizable navigation data and movement profiles for verifying the maximum movement dynamics of a GNSS receiver 1 The R amp S SMBV P101 pack
17. age is a standalone unchangeable instrument con figuration No other options are required Tailored for production testing The R amp S SMBV100A with the R amp S SMBV P101 option is tailored to meet the demands placed on a GNSS tester During production testing of GNSS modules and receivers the basic GNSS signal reception and the connection between the antenna and GNSS chipset need to be GNSS Production Satellite 1 Signal Dynamics A SV ID Standard 13 GPS Dynamics Profile High Order z Start Time Offset eh Be GE o iioa 0 EN gt oO F Hz F Hz s F Hz s 18 checked The GNSS production tester based on the R amp S SMBV100A simulates separate satellites for the GPS Glonass BeiDou and Galileo navigation standards in the L1 E1 bands The four satellites can be activated individu ally each with a dynamic range of 34 dB Level changes can be made on the fly without interrupting the signal enabling users to simultaneously perform independent sensitivity tests for each system The large dynamic range provides sufficient margin to accommodate the variance in the chipsets The 1 pps and 10 pps GNSS markers allow fast synchronization between the tester and DUT enabling high throughput In addition to GNSS signals the GNSS production tester can produce pure level stable CW signals for very basic tests to calibrate the setup with significantly higher levels or simply as an interfere
18. are projected from the almanac subframes zero navigation data navigation payload is set to zero channel coding and synchronization fields are applied on off on off on off on off Rohde amp Schwarz GNSS Simulator in the R amp S SMBV100A Vector Signal Generator 21 Specifications of the R amp S SMBV P101 GNSS production tester in brief standalone package System time basis Simulation time Marker Doppler settings Constant Doppler configurable per satellite Doppler setting unit Doppler setting range Hz Hz m s Doppler resolution Velocity Doppler profiles Configurable profiles per satellite Ordering information GRSAWIE default GPS flexible date and time or GPS time configuration with a resolution of 1 ms 1 PRS 1 PP2S 10 PPS pulse pattern on off ratio trigger m s or Hz 100 kHz 0 01 Hz 0 01 defined by the following configurable parameters 1 max jerk 1 max acceleration 1 duration of constant acceleration 1 duration of constant velocity Doppler Full featured GNSS simulator in the R amp S SMBV100A vector signal generator Base unit including power cable quick start guide and CD ROM with operating and service manual Vector Signal Generator Hardware options GNSS related configuration Frequency Range 9 kHz to 3 2 GHz Baseband Generator with digital modulation realtime and ARB 32 Msample 120 MHz RF bandwidth Baseband Generator with high signal dynam
19. atically In addition to these pre defined scenarios custom scenarios can also be generat ed to implement user defined A GNSS test cases In both cases the associated assistance data can be generated automatically at the push of a button The assistance data contains all navigation data needed by the A GNSS capa ble mobile phone for faster position fixing In reality near by base stations transfer the assistance data to the mobile phone This is why a complete A GNSS test setup in cludes the satellite simulator plus a radiocommunications tester like the R amp S CMW500 for simulating the role of the mobile radio network The assistance data gener ated by the R amp S SMBV100A can be transmitted to the radiocommunications tester so that it can in turn be made available to the DUT via a mobile radio connection 3GPP TS 37 571 2 S7 Signaling ST4 3GPP TS 37 571 1 S7 Performance 1 ST1 3GPP TS 37 571 1 S7 Performance 1 ST5 3GPP TS 37 571 1 S7 Performance 2 ST1 3GPP TS 37 571 1 S7 Performance 2 ST5 3GPP TS 37 571 1 S7 Performance 5 ST1 3GPP TS 37 571 1 S7 Performance 5 ST5 Aerospace and defense applications In addition to the coarse acquisition C A code com mercially used in GPS receivers many applications es pecially US military applications require the P code Due to its higher code rate the use of a P code signal can significantly improve the positioning accuracy of a GNSS receiver The R amp S SMBV100A supports
20. ation of up to 6 Glonass satellites FDMA with civilian codes at frequencies L1 and L2 1 Static mode and localization mode 1 User definable almanac file agl with real navigation data 1 User definable location and start time 1 Automatic setup of Glonass scenario with optimum satellite constellation 1 Unlimited simulation time with automatic on the fly exchange of satellites 1 Dynamic power control of individual satellites in realtime 1 Hybrid GNSS satellite constellations with up to 6 satellites requires the R amp S SMBV K44 GPS R amp S SMBV K66 Galileo R amp S SMBV K105 OZSS R amp S SMBV K110 SBAS and or R amp S SMBV K107 BeiDou option Assisted Glonass R amp S SMBV K95 option 1 Support of predefined and user defined A Glonass test scenarios 1 Generation of A Glonass assistance data for predefined and user defined scenarios 1 Fully user defined configuration of Glonass navigation message manually or via import of RINEX ephemeris files 1 Requires the R amp S SMBV K94 option R amp S SMBV100A option tree showing hierarchy and dependencies among GNSS options Minimum hardware configuration Software options R amp S SMBV K111 GBAS R amp S SMBV K105 QZSS R amp S SMBV K110 SBAS ai Hardware m GNSS standard dependent software options m GNSS standard independent software options GNSS augmentation systems Rohde amp Schwarz GNSS Simulator in the R amp S SMBV100A
21. ealtime gt page 11 1 Static simulations with zero or constant Doppler shifts for rapid receiver prototyping and development GNSS simulation plus multifaceted vector signal 1 Unlimited simulation time with automatic on the fly generation exchange of satellites 1 Support of all important state of the art digital standards 1 Support of Assisted GNSS A GNSS test cases for GPS 1 Customized internal signal generation Glonass Galileo BeiDou and OZSS SBAS 1 High performance for all types of applications 1 Aerospace and defense applications gt page 12 1 Support of hardware in the loop applications through realtime external trajectory feed gt page 4 Simulation of a combined GPS Glonass Galileo BeiDou OZSS constellation with consideration of signal obscuration and multipath GPS Real Time S P 0 T Display Type Sky View Real Time Information Time UTC 20 08 2012 16 00 00 000 Rec Loc 35 68386 N 139 74506 E 45 0m Rec Att Y 0 000 P 0 000 R 0 000 HDOP PDOP 0 65 1 72 Legend LOS LOS Ant Pat loss LOS Echoes LOS Echoes Ant Pat loss Echoes G GPS z Obscured R GLONASSIC 3 B BeiDou Inactive Q QZSS Rohde amp Schwarz GNSS Simulator in the R amp S SMBV100A Vector Signal Generator 3 GNSS receiver tests made easy Whether measuring TTFF location accuracy reacquisition time or sensitivity With the GNSS simulator solution in the R amp S SMBV100A the performance of receivers
22. ed The R amp S SMBV K102 option makes it possible to con figure receive antenna properties such as antenna gain phase shift and obscuration due to vehicle body parts The R amp S SMBV K103 option enhances the broad scope of R amp S SMBV100A functions by offering realistic trajectory simulation with consideration of the vehicle s roll bank pitch elevation and yaw heading angles as well as simula tion of spinning vehicles Rohde amp Schwarz GNSS Simulator in the R amp S SMBV100A Vector Signal Generator 11 GNSS simulation plus multifaceted vector signal generation The R amp S SMBV100A is not just a satellite simulator it is also a flexible vector signal generator with outstanding RF performance This allows manufacturers of mobile phones or car infotainment systems to test both the main functionality of their products as well as the GNSS functionality with a single instrument TDMA Standards GSM EDGE Bluetooth TETRA CDMA Standards 3GPP FDD CDMA2000 TD SCDMA 1xEV DO WLAN Standards IEEE 802 11 a b g IEEE 802 11 Beyond 3G Standards IEEE 802 16 WiMAX Satellite Navigation GPS GALILEO GLONASS BeiDou Avionic Standards GBAS Broadcast Standards FM STEREO SIRIUS XM RADIO DAB T DMB Near Field Communication NFC A B F Misc 12 Support of all important state of the art digital standards
23. ed extras Hardcopy manuals in English UK 1407 6062 32 Hardcopy manuals in English US 1407 6062 39 19 Rack Adapter R amp S ZZA S334 1109 4487 00 Power Sensor 9 kHz to 6 GHz R amp S NRP Z92 1171 7005 02 USB Serial Adapter for RS 232 remote control R amp S TS USB1 6124 2531 00 Accessories Documentation of Calibration Values R amp S DCV 2 0240 2193 18 DAkkS formerly DKD Calibration in line with ISO 17025 and ISO 9000 R amp S SMBV DKD 1415 8448 02 R amp S SMBV P101 GNSS production tester standalone package Vector Signal Generator R amp S SMBV100A 1407 6004 02 GNSS Production Tester R amp S SMBV P101 1419 2844 02 The base unit can only be ordered with an R amp S SMBV B10x frequency option 2 For additional options see the R amp S SMBV100A data sheet PD 5214 1114 22 and www rohde schwarz com 3 Subject to export control regulations and therefore not available in all countries nor to all customers a No options can be added to this instrument configuration The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG Inc and any use of such marks by Rohde amp Schwarz is under license CDMA2000 is a registered trademark of the Telecommunications Industry Association TIA USA WiMAX Forum is a registered trademark of the WiMAX Forum WiMAX the WiMAX Forum logo WiMAX Forum Certified and the WiMAX Forum Certified logo are trade marks of the WiMAX Forum For data sheet see PD 5214 5
24. ed for sensitivity tests which determine the minimum level at which a receiver can acquire a sig nal or maintain a position fix The R amp S SMBV100A allows a level of down to 145 dBm to be set with a resolution of 0 01 dB This high resolution is needed to determine the sensitivity of the receiver as precisely as possible The R amp S SMBV100A also offers excellent level accuracy for ensuring the reproducibility of the measurement results On the other hand a powerful signal generator like the R amp S SMBV100A should also exhibit a sufficiently high output power for general applications such as com ponent tests This makes it possible to compensate for loss between the generator and the DUT resulting from complex test setups cables switches couplers etc without having to use an external amplifier As standard the R amp S SMBV100A offers a specified output power of 18 dBm PEP and of more than 24 dBm in overrange Rohde amp Schwarz GNSS Simulator in the R amp S SMBV100A Vector Signal Generator 13 GNSS options overview in brief The R amp S SMBV100A offers options related to the GNSS standard such as the R amp S SMBV K44 GPS base op tion or the R amp S SMBV K66 Galileo base option as well as standard independent options An example is the R amp S SMBV K91 option which does not change the fea tures of an individual satellite but rather increases to 12 the number of GNSS satellites that can be simulated T
25. es for time consuming hardware installations Users can con tinue working without interruption Ready for other GNSS standards The market for GNSS has grown steadily over the last few years Especially with new satellite systems such as the Chinese BeiDou and the Indian IRNSS currently being un der development and existing systems being modernized the variety of available satellite systems signals and appli cations will continue to grow To take this development into account the R amp S SMBV100A is ready to support other satellite stan dards above and beyond GPS Glonass Galileo BeiDou and QZSS SBAS This is made possible by the powerful R amp S SMBV100A hardware platform coupled with the very generic software architecture of the GNSS solution mak ing the R amp S SMBV100A a very safe investment for the future Ideal for production and R amp D alike The flexible GNSS options allow the R amp S SMBV100A to be configured according to the users needs so that it can be used both in production and in the R amp D lab Users do not have to learn to work with a number of different instru ments or simulation approaches one instrument will meet all simulation requirements and provides a powerful flex ible and intuitive user interface Automated simulations can be set up easily using a comprehensive set of remote control commands The GPS Glonass Galileo BeiDou and OZSS SBAS options R amp S SMBV K44 R amp S SMBV K94 R
26. f the vehicle s angular body parameters attitude minimum duration of 12 hours before attitude repetition up to 4 days if R amp S SMBV K511 is installed up to 16 days if R amp S SMBV K512 is installed Specifications of the full featured GNSS simulator in brief requires R amp S SMBV K92 Attitude smoothing Realtime attitude feed Spinning Spinning rate GBAS VHF data broadcast VDB tower configuration Number of VDB transmitters Frequency number GBAS message configuration Message types Waypoint file Differential GNSS file requires R amp S SMBV K92 all messages can be modulated simultaneously if needed vehicle attitude smoothing based on a selected vehicle description file hardware in the loop realtime feed of vehicle at titude data streaming rate up to 100 Hz 10 ms system response delay simulates a constant rate of change of roll up to 400 Hz in line with RTCA DO 246D generation of up to 8 VDB tower signals 5 to 5 message types 1 2 4 and 11 used to load the TAP waypoint data modulated with GBAS message 4 used to transmit differential GNSS corrections for GPS Glonass and SBAS satellites in view These specifications in brief relate to the GNSS functionality of the R amp S SMBV100A For specifications on the general performance of the R amp S SMBV100A or on the functionality of other digital standards see the R amp S SMBV100A data sheet PD 5214 1114 22 and the Digital Standards f
27. he following is a detailed overview of the available options and the functionality they provide GPS R amp S SMBV K44 option 1 Simulation of up to 6 GPS satellites with C A code at frequencies L1 and L2 1 Static mode and localization mode 1 User definable almanac file GSEM YUMA with real navigation data 1 User definable location and start time 1 Automatic setup of GPS scenario with optimum satellite constellation 1 Unlimited simulation time with automatic on the fly exchange of satellites 1 Dynamic power control of individual satellites in realtime 1 Hybrid GNSS satellite constellations with up to 6 satellites requires the R amp S SMBV K66 Galileo R amp S SMBV K94 Glonass R amp S SMBV K105 OZSS R amp S SMBV K110 SBAS and or R amp S SMBV K107 BeiDou option Assisted GPS R amp S SMBV K65 option 1 Support of predefined and user defined A GPS test scenarios 1 Generation of A GPS assistance data for predefined and user defined scenarios 1 Fully user defined configuration of GPS navigation message manually or via import of RINEX ephemeris files 1 Requires the R amp S SMBV K44 option 14 GPS P code R amp S SMBV K93 option 1 Simulation of up to 6 GPS satellites with P codes or combined civilian C A and military P codes 1 Requires the R amp S SMBV K44 option 1 Static mode and localization mode 1 User definable almanac file GEM YUMA with real navigation data 1 User definable location and start
28. ics digital modulation realtime and ARB 32 Msample 120 MHz RF bandwidth Hard Disk removable Memory Extension for ARB to 256 Msample requires the R amp S SMBV B92 option Memory Extension for ARB to 1 Gsample Software options GNSS related only GPS Assisted GPS Galileo Assisted Galileo GNSS Extension to 12 Satellites GNSS Enhanced e g moving scenarios multipath GPS P Code Glonass Assisted Glonass GNSS Extension to 24 Satellites 22 R amp S SMBV100A R amp S SMBV B103 R amp S SMBV B10 R amp S SMBV B10F R amp S SMBV B92 R amp S SMBV K511 R amp S SMBV K512 R amp S SMBV K44 R amp S SMBV K65 R amp S SMBV K66 R amp S SMBV K67 R amp S SMBV K91 R amp S SMBV K92 R amp S SMBV K93 R amp S SMBV K94 R amp S SMBV K95 R amp S SMBV K96 1407 6004 02 1407 9603 02 1407 8607 04 1419 2009 02 1407 9403 02 1419 2544 02 1419 2567 02 1415 8060 02 1415 8560 02 1415 8590 02 1419 2509 02 1415 8577 02 1415 8583 02 1415 8660 02 1415 8677 02 1419 2521 02 1415 8790 02 GNSS Extension for Obscuration and Automatic Multipath R amp S SMBV K101 1415 8802 02 GNSS Extension for Antenna Pattern R amp S SMBV K102 1415 8819 02 GNSS Extension for Spinning and Attitude R amp S SMBV K103 1415 8825 02 QZSS R amp S SMBV K105 1419 2350 02 BeiDou R amp S SMBV K107 1419 2709 02 SBAS R amp S SMBV K110 1419 2373 02 GBAS R amp S SMBV K111 1419 2396 02 Recommend
29. is quickly and easily characterized Flexible scenario generation facilitates receiver testing A number of standard tests are available for characterizing the performance of a GNSS receiver including TTFF loca tion accuracy and sensitivity tests Entire test series are usually required before statistically solid statements can be made about the characteristics of a receiver Each test in the series can be based on a different scenario i e dif ferent conditions under which the test takes place For ex ample the number of visible satellites or the satellite sig nal strength can be varied in order to simulate scenarios where Satellite visibility is restricted Even the geographic position can be changed from test to test While one sce nario is based on a Stationary position another might be based on moving along a defined route moving scenario GPS Satellite Configurations I Ma es d Get Optimal Constellation Fan e PH ET aA PA a Pa en ery am ma Many GNSS simulators offer users only a defined number of precalculated scenarios for playback But this usually does not meet the requirements and conditions described above In contrast the R amp S SMBV100A allows users to generate unlimited customized scenarios making it easy to perform receiver tests under varying conditions Only a few keystrokes are needed in the R amp S SMBV100A user interface to generate complex scenarios with up to 24 satellites
30. l bank environments attitude parameters 1 User definable roadside planes to model highway and 1 Predefined attitude profiles and movement files cutting environments 1 Up to 400 Hz spinning rate 1 User definable interface to model ground sea reflection 1 Realtime feed of motion and attitude data for HIL for aircraft and ships applications 1 User definable interface to model full signal obscuration 1 Requires the R amp S SMBV K102 option as in tunnels 1 Automatic realtime update of satellite visibility and GBAS extension R amp S SMBV K111 option multipath depending on the modeled user environment 1 Provision of GBAS messages via VHF link in auto localization mode 1 Simultaneous simulation of up to 11 GBAS frequency 1 10 Hz obscuration and multipath environment sampling channels emulating multiple VHF data broadcast VDB 1 Configurable material property for vertical obstacles towers roadside planes and ground sea terrains 1 Generation of message types 1 2 4 and 11 1 Predefined environment models such as rural area 1 Support of real GBAS data generation based on user suburban area urban canyon tunnel bridge highway configurable waypoint file and differential GNSS data 1 Customizable land mobile multipath environment 1 Requires the R amp S SMBV K44 R amp S SMBV K66 R amp S SMBV K94 R amp S SMBV K105 R amp S SMBV K110 and or R amp S SMBV K107 option 1 Automatic multipath update requires R amp S SMBV K92 GNSS extension for antenn
31. nd settings so that GNSS signals are available as long as needed or throughout the entire simulation run The set of satellites to be simulated is continually calcu lated based on the number of available channels the satel lite visibility and the constellation geometry The satellite visibility can be influenced by the user by configuring an elevation mask The constellation geometry is optimized so that the set of simulated satellites results in a minimum position dilution of precision PDOP value For a given user position some satellites drop below the horizon while others rise into view Rohde amp Schwarz GNSS Simulator in the R amp S SMBV100A Vector Signal Generator 5 Support of Assisted GNSS A GNSS test cases for GPS Glonass Galileo BeiDou and QZSS Many modern mobile phones are equipped with A GNSS functionality To allow the integrated GNSS receiver to get a faster position fix when it is turned on A GNSS capable mobile phones retrieve their navigation data from the mo bile radio network instead of decoding it from the satellite signal This process is typically much faster and can re duce the TTFF from a worst case of several minutes to just a few seconds This speed advantage is utilized for emer gency functions for example The R amp S SMBV100A supports all GNSS scenarios for A GNSS test cases currently defined for GSM 3GPP FDD and 3GPP2 CDMA2000 All necessary settings in the generator are made autom
32. ontrolled in realtime in order to simulate con ditions of restricted satellite visibility The GNSS functionality provided by the R amp S SMBV100A also includes the ability to simulate realistic transmission and signal reception conditions through the use of multi path signal generation by modeling various atmospheric effects and surroundings with buildings and bridges or by simulating realistic vehicle dynamics The versatility of the R amp S SMBV100A is especially benefi cial to mobile phone and car infotainment system manu facturers who integrate GNSS modules in their products as it allows them to test a range of functions with a single instrument This is possible because in addition to GNSS signals the R amp S SMBV100A also generates communi cations signals conforming to all conventional standards such as LTE HSPA and WiMAX as well as signals for digital radio standards such as DAB XM Radio or Sirius Key facts 1 Support of GPS L1 L2 C A and P code Glonass L1 L2 Galileo E1 BeiDou B1 B2 and OZSS SBAS L1 including hybrid constellations 1 Realtime simulation of realistic constellations with up to 24 satellites and unlimited simulation time 1 Flexible scenario generation including moving scenarios dynamic power control and atmospheric modeling 1 Configuration of realistic user environments including obscuration and multipath antenna characteristics and vehicle attitude 1 Static mode for basic receiver te
33. option GNSS enhanced R amp S SMBV K92 option 1 WGS84 waypoint interface and import of NMEA waypoints 1 Import of Google Earth and Google Maps kml files 1 East North Up ENU 2D vector trajectory interface line arc for automatic waypoint generation 1 Motion interface for dynamics input velocity vector or velocity magnitude in ENU and WGS84 1 Predefined waypoint files for land vehicles ships aircraft and spacecraft 1 User definable and predefined vehicle description files for land vehicles ships aircraft and spacecraft 1 Smoothing of waypoints using vehicle description files 1 Hardware in the loop HIL realtime feed of vehicle motion data position velocity acceleration and jerk 1 Configurable HIL streaming rate of up to 100 Hz 1 HIL execution synchronous to 1 PPS 10 ms system response delay and applied prediction algorithms 1 User definable multipath 1 Configurable atmospheric models 1 Configurable system time transformation parameters 1 Configurable leap second simulation 1 Logging of simulation data 1 Requires the R amp S SMBV K44 R amp S SMBV K66 R amp S SMBV K94 R amp S SMBV K105 R amp S SMBV K110 and or R amp S SMBV K107 option GNSS extension for obscuration simulation and GNSS extension for spinning and attitude automatic multipath R amp S SMBV K101 option R amp S SMBV K103 option 1 User definable vertical obstacles to model urban 1 Configurable pitch elevation yaw heading and rol
34. or Signal Generators data sheet PD 5213 9434 22 x Depending on hardware option may be subject to export restrictions Specifications of the R amp S SMBV P101 GNSS production tester in brief standalone package Systems and signals GNSS system frequencies Supported GNSS Supported signals Max number of simulated signals Signal and data configuration Satellite relative power Ranging code per satellite Navigation data per satellite Navigation data source Meander code for Glonass Time mark for Glonass Secondary code for BeiDou Secondary code for Galileo 575 42 MHz L1 602 00 MHz L1 1575 42 MHz E1 1561 098 MHz L1 channel per simulated GNSS configurable in user power mode identical for each satellite 1575 42 MHz GPS L1 Galileo E1 1602 00 MHz Glonass L1 1561 098 MHz BeiDou L1 GPS Glonass Galileo BeiDou single GPS C A code modulation in line with IS GPS 200F Sept 2011 PRN 1 32 single Glonass C A code modulation in line with Glonass ICD version 5 1 2008 frequency channel numbers 7 to 6 single Galileo E1 B and E1 C signal in line with Galileo ICD Sept 2010 PRN 1 50 single BeiDou BeiDou B1 signal in line with BeiDou ICD version 2 0 Dec 2013 PRN 1 37 4 on off on off all O all 1 pattern up to 64 bit PN 9 to PN 23 data lists real navigation data almanac file as source for ephemeris and almanac subframes ephem eris subframes
35. r Enhanced functions for characterization Functions beyond the production test features are nec essary to efficiently characterize GNSS chipsets The re quired user data can be selected from data patterns data lists or even real navigation data that is automatically generated from the almanac files in the GNSS tester Zero navigation data is also provided with the ephemeris data set to zero in order to verify the different stages in the receiver Full coding is used and the synchronization fields are set accordingly Since the four satellite signals are gen erated in realtime the navigation data can be transmitted with a realtime GNSS clock The 1 pps or 10 pps marker is used to verify the exact time synchronization in the GNSS receiver To quickly cost effectively and efficiently verify the re ceiver s ability to handle high movement dynamics both predefined and user defined movement profiles can be run Maximum values can be set for acceleration and jerk The production tester in the R amp S SMBV100A automati cally generates the corresponding satellite signal with the required Doppler profile GNSS Production Satellite Configurations Power Mode User gt Ref Power 120 00 dBm z Total Power 127 39 dBm Satellites Satellite 1 Standard Chip Rate 1 023 000 00 MHz Modulation BPSK Paeudorange 20 531 266 765 m z Time Shit 70 060 095 chips Initial Doppler Shift 35 00 Hz Initial Carrier Phase
36. sting using signals with zero or constant Doppler shift 1 Support of Assisted GNSS A GNSS test scenarios including generation of assistance data for GPS Glonass Galileo BeiDou and OZSS SBAS 1 Realtime external trajectory feed for hardware in the loop HIL applications 1 Logging of simulation data 1 High signal dynamics simulation of spinning vehicles and precision code P code simulations to support aerospace and defense applications 1 Enhanced simulation capabilities for aerospace appli cations by supporting ground based augmentation systems GBAS 1 Support of other digital communications and radio standards in the same instrument May be subject to export restrictions G N S S Si m u lato r n Simulation of real world conditions 1 Ensuring realistic conditions for receiver tests 1 Simulation of atmospheric effects th RASES M BV 1 00A 1 Customizable antenna characteristics e 1 Realistic vehicle dynamics including attitude simulation 1 Urban canyon simulations with multipath and signal B e n efits d n d I ene land mobile multipath environment 1 Configurable noise and interference simulation key features ia Customized solutions through flexible options 1 Instrument configuration tailored to customer needs GNSS receiver tests made easy 1 Ready for other GNSS standards 1 Flexible scenario generation facilitates receiver testing 1 Ideal for production and R amp D alike 1 Faster testing with GNSS signal generation in r
37. supports a number of digital communications standards and analog digital radio standards Customized internal signal generation In addition to signal generation in accordance with digi tal standards the baseband generator R amp S SMBV B10 provided by the R amp S SMBV100A also generates user defined digitally modulated signals Again signals can be generated either in realtime directly in the instrument or they can be generated as a precalculated waveform us ing the R amp S WinlOSIM2 software Using the integrated ARB the R amp S SMBV100A can also play back custom ized signals and special test vectors e g generated with MATLAB High performance for all types of applications In addition to its flexibility with respect to signal genera tion the R amp S SMBV100A also offers excellent RF perfor mance which is a prerequisite for pure signals and repro ducible measurements For example a key parameter for RF quality is SSB phase noise This parameter is important for CW applications as well as for digital signals because it directly affects the error vector magnitude EVM The R amp S SMBV100A not only exhibits excellent SSB phase noise it also boasts outstanding values for harmonic and nonharmonic sup pression which is also a significant factor in the quality of GNSS signals When testing GNSS receivers one key parameter is the level range of the generator This range must support the low levels requir
38. the GNSS carrier and configurable signal strength Using a second device user defined interference signals can be generated and additional scenarios implemented e g simultaneous reception of GPS and Bluetooth or WLAN environments which can be modified with a built in editor All relevant multipath signals and obscuration effects due to buildings can be automatically calculated and simulated based on the building geometry user movement and sur face characteristics In this way trips through inner city areas as well as influences of highway bridges or tunnels can be easily simulated GPS Satellite 5 Multipath Configuration 5 Number Of Taps Power dB 10 24 GPS The R amp S SMBV100A allows sev eral multipath taps per satellite to be defined o5 1 0 1 5 Time Shift Chips Customized solutions through flexible options 6 12 or 24 satellites GPS Glonass Galileo BeiDou and or OZSS SBAS GPS C A code or P code With or without moving scenarios The GNSS solution for the R amp S SMBV100A makes it possible Users can completely customize their solution Instrument configuration tailored to customer needs Users of the R amp S SMBV100A do not have to pay for fea tures that they might never use The instrument configura tion can be expanded to include specific features as test requirements change Because additional functionality is released via software license keys there are no downtim
39. time 1 Automatic setup of GPS scenarios with optimum satellite constellation 1 Unlimited simulation time with automatic on the fly exchange of satellites 1 Dynamic power control of individual satellites in realtime 1 Hybrid GNSS satellite constellations with up to 6 satellites requires the R amp S SMBV K66 Galileo R amp S SMBV K94 Glonass R amp S SMBV K105 OZSS R amp S SMBV K110 SBAS and or R amp S SMBV K107 BeiDou option Galileo R amp S SMBV K66 option 1 Simulation of up to 6 Galileo satellites at frequency E1 1 Static mode and localization mode 1 User definable almanac file SEM YUMA with real navigation data 1 User definable location and start time 1 Automatic setup of Galileo scenario with optimum satellite constellation 1 Unlimited simulation time with automatic on the fly exchange of satellites 1 Dynamic power control of individual satellites in realtime 1 Hybrid GNSS satellite constellations with up to 6 satellites requires the R amp S SMBV K44 GPS R amp S SMBV K94 Glonass R amp S SMBV K105 OZSS R amp S SMBV K110 SBAS and or R amp S SMBV K107 BeiDou option Assisted Galileo R amp S SMBV K67 option 1 Support of user defined A Galileo test scenarios 1 Generation of A Galileo assistance data 1 Fully user defined configuration of Galileo navigation message manually or via import of RINEX ephemeris files 1 Requires the R amp S SMBV K66 option Glonass R amp S SMBV K94 option 1 Simul
40. ulated multipath obscuration environment Physical model Obscuration and multipath requires R amp S SMBV K92 Obscuration only GNSS extension for antenna pattern R amp S SMBV K102 Antenna pattern body mask available in auto localization mode and user localization mode Number of antenna patterns Antenna pattern switching GNSS extension for spinning and attitude R amp S SMBV K103 Spinning and attitude available in auto localization mode and user localization mode Attitude files requires R amp S SMBV K92 20 24 channels with R amp S SMBV K96 1 to 10 depending on remaining channel budget logging of user motion and attitude parameters user definable as well as predefined user envi ronments rural suburban urban canyon tunnel bridge highway elevation azimuth grid with 4 possible states 1 obscuration 1 line of sight 1 line of sight and echoes 1 echoes only see R amp S SMBV K92 data sheet automatic se lection of multipath signals based on elevation multipath relative delay and amplitudes in case of insufficient number of channels 5 Hz to 10 Hz simulates satellite visibility and multipath de pending on a modeled user environment simulates satellite visibility depending on a mod eled user environment multipath not simulated simulates signal power and carrier phase re sponse due to antenna pattern and body mask 1to4 possible through realtime scheduling allows the configuration o
41. under varying conditions Static simulations with zero or constant Doppler shifts for rapid receiver prototyping and development When implementing signal processing algorithms in GNSS receivers simplified signals are frequently required for verification tests Especially for signal acquisition and the implementation of code and phase locked loops it can be helpful to use static signals i e signals without any Doppler shift The R amp S SMBV100A can be set to an appropriate mode static mode that is based on static nonmoving satellites and a static user The signals generated this way do not exhibit any signal dynamics Alternatively constant Doppler shifts can be applied to the signals in order to simulate defined signal dynamics Moreover the naviga tion data stream can be matched to the test requirements and deactivated or modified as required Unlimited simulation time with automatic on the fly exchange of satellites Some receiver tests require particularly long simulation times for example a moving scenario that simulates a drive from Frankfurt to Munich or a stationary scenario that runs over several hours or even days in order to char acterize the long term stability of the receiver During such long simulation runs some satellites move toward the horizon and disappear from sight while others rise into view In auto localization mode the R amp S SMBV100A automatically handles the satellites risings a
42. user in vari ous ways e g by applying predefined trajectories as those used for the simulation of 3GPP test scenarios Alterna tively trajectories can be defined in the form of waypoints or they can be imported and played back using routes that were recorded in NMEA format with a GNSS receiver Another approach to motion simulation is to feed ex ternally generated trajectories i e from outside the R amp S SMBV100A via SCPI to the R amp S SMBV100A This makes it possible to simulate complex HIL applications with high update rates and extremely low latencies Rohde amp Schwarz GNSS Simulator in the R amp S SMBV100A Vector Signal Generator 7 Simulation of real world conditions lonospheric effects tropospheric influences signal obscuration and multipath effects are among the key factors that can impact the quality and availability of GNSS signals Using the R amp S SMBV100A such influences can be quickly and easily configured to obtain a realistic simulation of receiving conditions Ensuring realistic conditions for receiver tests Receiver tests can only be conclusive when they are per formed under realistic conditions Therefore the simula tion must take into consideration the signal propagation characteristics the properties of the receive antenna and the receiver environment Realistic modeling of user movement taking into account the angles of attitude is also part of this simulation process The R amp S SM
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