GSG Wavefront
SOFTWARE-DEFINED CRPA TEST SYSTEM
Protecting your GNSS systems from jamming and spoofing is more critical now than ever. This type of resilience is accomplished with an advanced GNSS Simulator capable of generating dedicated RF signals to test CRPA (Controlled Reception Pattern Antenna) architecture.
Safran’s GSG-Wavefront Shared LO design (Shared Local Oscillator) is a field-proven “off-the-shelf” customizable and easy-to-use CRPA receiver testing platform. It provides an affordable and upgradable solution that leverages Skydel, its robust GNSS simulation engine built on a software-defined architecture.
CRPA are based on multi-element antennas designed to reduce the effects of RF interference, or establish signals’ angle of arrival. GSG Wavefront simulators emulate and generate the GNSS and interference signals as outputs of the antennas elements. The GSG Wavefront approach is different from classical anechoic CRPA Tester systems : it simulates the multi-elements antenna by providing as many RF outputs as antenna elements, to test the CRPA unit.
ADVANTAGES
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Advanced Interference Generation Module
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Scalable Architecture
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Signal “Store and Analyze”
CASE STUDIES
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GSG-8 and SecureSync Platforms Combined to Support GMV in the RIPTIDE Project
Discover how GMV utilized the GSG-8 and SecureSync platforms in the development of a robust PNT framework to limit the impact of GNSS vulnerabilities on maritime and inland waterways’ PNT applications within the Black Sea and Danube Lower Basin region.
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Safran’s GSG-8 Advanced Simulator Drives R&D Testing for Stellantis (formerly FCA – Fiat Chrysler Automobiles)
Discover how the flexible and scalable GSG-8 platform delivered a cost-effective and high-end precision GNSS testing to the automotive industry.
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FEATURES
- Scalable antenna configuration, supporting 2 to 16 multi-frequency antenna elements
- Modular all along the lifecycle
- Capable of supporting up to 4 GNSS bands simultaneously
- All GNSS bands : L1, L2, L5, E6, S band
- One GNSS output and one Interference output per antenna element. Combinable to have one RF output per antenna element
- Interference: Jamming, spoofing, and meaconing.
- Simulate multiple threats simultaneously
- Dynamic transmitters with user-defined waveforms
- Shared LO across all Software Defined Radios
- Continuous phase synchronization and alignment monitoring
- Real-time semi-automated calibration tool
- No specific calibration needed after power cycle
- Reduced form factor (24U rack for typical 8 elements system)
- Internal generation and distribution of low phase noise 10 MHz clock and 1-PPS signals
- (option) Rubidium low phase noise clock
- More information (Securesync 2400)
- Option: use an external clock, distribute the clock and PPS outside of the system and calibrate clock
- Hardware in the loop
- Quiet operation during simulation
- Powered by Skydel (with GUI & API)
SPECS
- Typical phase alignment bias: < ±1⁰
- Typical phase alignment deviation: 0.5° (1σ)
- Power accuracy on each element: ±0.5 dB
- Power alignment between elements: ±0,5 dB
- Simulation from cold start time: <90 seconds
- Up to 800 signals / element
- Iteration rate: 1kHz
- Dynamics:
- Maximum velocity: 1500 km/s
- Acceleration: no limits
- Jerk: no limits
- Jamming to GNSS Signal ratio: up to +130dB
- HIL latency under 10 ms
- GNSS constellations and Signals:
- GPS open services: L1-C/A, L1C, L1-P, L2-P, L2C, L5;
- GPS restricted signals: M and Y code
- GLONASS: G1, G2;
- Galileo open services: E1, E5a, E5b, E5AltBOC, E6 HAS,
- Galileo restricted signals: PRS
- BeiDou: B1, B2, B1C, B2A, B3I;
- QZSS: L1-C/A, L2C, L5
- NavIC: L1, L5, S-band
- SBAS L1 and L5: WAAS, EGNOS, MSAS, GAGAN, SDCM
- Custom Signals
- IQ reader
- Signal purity
- Spurious: <65 dBc
- Harmonics: <80 dBc
- Phase noise: <0.002 rad (RMS)
Skydel
GNSS Simulation