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 GPS and other satellite navigation services. General Guidance provides anti-jamming GNSS solutions, anti-spoofing technologies, interference-resistant OEM GNSS receivers and GNSS-aided inertial navigation systems from Inertial Labs, a VIAVI Solutions company, and JAVAD GNSS.

The Inertial Labs portfolio includes TwoSents, a patented APNT electronics module designed to detect, mitigate and filter multiple sources of GNSS jamming and spoofing. It supports multi-band, multi-constellation operation, adaptive digital filtering, low-latency processing and interference suppression of up to 50 dB. TwoSents is designed for integration with single- and dual-antenna inertial navigation systems, autopilots and other navigation platforms requiring improved GNSS resilience.

JAVAD GNSS extends the portfolio with compact OEM receivers and GNSS-aided inertial navigation solutions. TR-2S AJ combines multi-frequency, multi-constellation GNSS tracking with patented anti-spoofing, jamming detection, in-band interference rejection and jamming suppression. TR-2S AJ INS integrates these interference-resilient GNSS capabilities with calibrated, temperature-compensated accelerometers and gyroscopes to provide position, velocity and full attitude determination in a compact OEM format.

Additional JAVAD products address a range of precise positioning and navigation requirements. TR-DI HDA provides dual-antenna GNSS heading and high-speed interfaces for IMU integration, including applications in low Earth orbit. TR-3S offers multi-frequency, multi-constellation tracking and high-rate positioning, while TR-3S DUO adds dual-antenna GNSS heading. TR-2S provides compact, high-rate GNSS and RTK positioning with spoofing detection and advanced multipath mitigation. TR-2S LEO is configured for precise GNSS positioning under the radiation conditions typically encountered in low Earth orbit. Available jamming and spoofing detection capabilities vary by model.

These anti-jamming, anti-spoofing and resilient GNSS solutions support UAVs, UGVs, aircraft, maritime platforms, autonomous systems, space applications and embedded defense electronics. They can operate as standalone components or as part of a wider Assured Positioning, Navigation and Timing (APNT) and sensor-fusion architecture. Integration with inertial navigation systems, autopilots, mission computers and alternative aiding sensors improves operational resilience and helps maintain navigation continuity in GNSS-contested and GPS-denied environments.