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Session C5: Military PNT User Equipment Test Results

M-code Receiver Jamming Test Results
John Weger and Mike Cook, BAE Systems
Location: Ballroom C
Date/Time: Wednesday, Jun. 14, 9:35 a.m.

Abstract: M-code Receiver Jamming Test Results
Presenter: John Weger & Mike Cook, BAE Systems
Session: Classified Day
The precision strike revolution has offered the United States a battlefield advantage for a time frame approaching twenty years. Observant adversaries have (and continue to) work feverishly to diminish our ability to project power through advanced electronic countermeasures and spectrum warfare. US solutions have continued to outpace such threats with protected satellite navigation systems that tightly integrate advanced digital antenna electronics with state-of-the art encrypted signal processing receivers developed by BAE Systems. Our DIGAR multi-beamforming antenna electronics protect Intelligence, Surveillance, and Reconnaissance (ISR) and strike aircraft in their mission to maintain constant awareness, find, fix, and finish targets. The IGASTM, NavStormTM, NavFireTM, and SABRTM anti-jam weapon receivers provide pinpoint location information in contested environments for strike weapons including air armament, Army and Navy surface fires.
The advent of qualified, field-ready M-code GPS User Equipment (MGUE) brings even more capability to sensor and weapon systems, including an advanced, more secure cryptography architecture, higher signal power, and improved anti-spoof. Integrated with a new generation of multi-beamforming aperture controllers, these new solutions are being integrated across the fleet to bring improved assurance and performance to the fight.
BAE Systems performed testing of several systems during the NAVFEST event using our purpose-built test vehicle. The testing consisted of 5 grueling nights slugging through wind, snow, and the most hotly contested L-band spectrum on planet Earth. Systems under test provided direct visibility into performance comparisons between SAASM-based and MGUE-based receivers against a flurry of jammer configurations and waveforms ranging from simple to extremely complex. A navigation-grade inertial reference provided attitude and velocity aiding to the systems under test via a custom redistribution network to allow digital beamforming throughout the event. Systems under test included:
Inertial Reference GPS Receiver Antenna Electronics Array
0.8 nmi/hr Fiber Optic BAE Systems ASR 3.7, SAASM DIGAR-300 N79-3 ADAP Array
Trimble Force5/24D, SAASM DIGAR-300 N79-1 GAS1 Array
BAE Systems SABR-M, MGUE AeroAntenna 9.5”
N/A DAGR DIGAR-300 N79-3 ADAP Array
DAGR Novatel GAJT
DAGR Landshield
Landshield+
DAGR None RA-1 (FRPA)
All systems were seven-element arrays with true simultaneous dual-frequency operation of both beamformer and GPS receiver. The BAE Systems DIGAR was configured to use ICD-GEM-DAE for the ASR and ICD-TMAS-DAE for the Force 5/24D, providing full multi-beamforming capability to each.
The US military remains unmatched in employment of long-range precision strike capabilities, with GPS at the center of both long-range precision munitions and real-time sensor networks. As we elevate capabilities beyond violent/extremist organizations to peer adversaries or those using peer adversary equipment and doctrine, GPS remains unchallenged as the gold standard of time and location service that will underpin even tighter integration with multi-function communication, sensing, and spectrum warfare systems. Understanding the anti-jam capabilities and performance expectations of available anti-jam GPS receivers and anti-jam antenna electronics will be a critical element in assessing the capability to put emerging and time-sensitive targets at risk and maintain combat effectiveness in tomorrow’s fight.
By attending this presentation, the audience will gain insight into the classified performance of such modern enhanced anti-jam systems.

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