Anti Jamming

Anti-Jamming, Anti-Spoofing and Resilient GNSS Solutions

Reliable positioning, navigation and timing depend on the availability and integrity of GNSS signals. In defense, aerospace, autonomous and other mission-critical applications, intentional jamming, spoofing, multipath and in-band radio-frequency interference can degrade or compromise GPS and other satellite navigation services. General Guidance provides anti-jamming GNSS systems, anti-spoofing technologies, protected antenna solutions and resilient OEM navigation components from Inertial Labs, a VIAVI Solutions company, and JAVAD GNSS.

The Inertial Labs portfolio includes M-AJ-QUATRO PRIME, a multi-band, multi-constellation CRPA anti-jamming antenna system designed for operation in GNSS-jammed, spoofed and denied conditions. It combines controlled radiation pattern antenna technology with adaptive digital nulling, jammer direction finding and advanced signal processing to reduce interference while preserving access to authentic GNSS signals. TwoSents complements this solution with electronic detection, filtering and mitigation of multiple sources of GNSS jamming and spoofing, supporting integration with inertial navigation systems and autopilot platforms.

JAVAD GNSS extends the portfolio with compact OEM receivers and GNSS-aided inertial navigation solutions. TR-2S AJ provides multi-frequency, multi-constellation tracking together with anti-spoofing, jamming detection, in-band interference rejection and suppression. TR-2S AJ INS combines interference-resilient GNSS reception with calibrated inertial sensors to deliver position, velocity and attitude data while improving navigation continuity when satellite signals are degraded or temporarily unavailable.

Additional JAVAD products—including TR-DI HDA, TR-3S, TR-3S DUO, TR-2S and TR-2S LEO—provide different combinations of precise GNSS positioning, RTK, dual-antenna heading, spoofing detection, jamming detection on selected models, advanced multipath mitigation, high-rate data output and radiation-tolerant configurations for low Earth orbit applications.

These anti-jamming and anti-spoofing solutions support UAVs, UGVs, aircraft, maritime platforms, autonomous systems, space applications and embedded defense electronics. They can operate as individual components or as part of a wider Assured Positioning, Navigation and Timing (APNT) and sensor-fusion architecture. When integrated with INS, autopilots, mission computers and alternative aiding sensors, they improve resilience in GNSS-contested conditions and help maintain navigation continuity in GPS-denied environments.