GSG Wavefront: Compact CRPA and ACU Testing Solution

Safran Electronics & Defence’s GSG Wavefront is a high-performance, compact solution designed to stimulate and validate CRPA Antenna Control Units (ACUs). As part of the GSG product family, it complements GSG Anechoic by enabling realistic CRPA testing outside the anechoic chamber, while maintaining the same focus on accuracy, flexibility, and efficiency.

Realistic CRPA Simulation Through Phase-Synchronized Signals

GSG Wavefront generates phase-synchronized RF signals in real time, enabling accurate reproduction of CRPA antenna behavior at the ACU level. This ensures precise validation of beamforming, null-steering, and interference mitigation algorithms under controlled and repeatable conditions.

Enable Complex and High-Dynamics Test Scenarios

Leveraging multi-instance synchronization, GSG Wavefront supports advanced simulation scenarios, including high-dynamics trajectories for both GNSS and non-GNSS applications. When combined with advanced jamming capabilities, it enables a wide range of operational and threat-representative test cases.

Compact, Scalable Solution for CRPA Unit Testing

Delivered in a compact form factor, GSG Wavefront is optimized for lab, integration, and system-level testing environments where chamber access is limited or unnecessary. It supports CRPA units with 4, 7, or more antenna elements, making it an ideal complement to chamber-based validation performed with GSG Anechoic.

Advanced Jamming and Waveform Flexibility

GSG Wavefront supports a large number of dynamic transmitters and user-defined waveforms, allowing engineers to model realistic interference, jamming, and signal environments. This flexibility ensures consistency between ACU-level testing and full antenna testing performed in an anechoic chamber.

Key Benefits of GSG Wavefront

High-Performance Phase Synchronization

• Accurate phase synchronization better than 1° RMS for reliable CRPA behavior emulation

Multi-Element CRPA Support

• Supports 8 or more antenna elements for scalable ACU and CRPA unit testing

Flexible and Powerful Signal Generation

• Advanced jamming capabilities

• Large number of dynamic transmitters

• Support for custom, user-defined waveforms

GSG Product Family: One Architecture, Two Complementary Solutions

Together, GSG Anechoic and GSG Wavefront form a complete CRPA testing ecosystem:

• GSG Anechoic – Full antenna and wavefront testing in an anechoic chamber

• GSG Wavefront – Compact ACU and CRPA unit testing outside the chamber

Both solutions share a common philosophy: high-fidelity simulation, automated calibration, and scalable architectures that reduce complexity while maximizing test realism.