Find manufacturers of GNSS / GPS Anti-Jam Technology for Drones, UAV and Unmanned Systems, including Anti Spoofing Systems and Anti Jamming Antennas and Receivers
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Technology Editor Last updated: October 20th, 2023
GPS Anti-Jam Technology (GAJT) for Drones & UAV
UAVs (unmanned aerial vehicles) and drones can be jammed by interference that affects the GNSS satellite signals needed for position, navigation and timing (PNT). This interference can cause drones that utilize RTK and PPP to switch to less precise positioning methods, or in the worst case lose tracking and positioning capabilities altogether.
TUALAJ GPS/GNSS CRPA Anti-Jamming System by TUALCOM
GNSS Spoofing
GNSS signals can also be spoofed. Spoofing involves using fake GPS signals that overcome weaker legitimate signals and are picked up by the drone’s receiver antenna. These fake signals cause the drone to assume it is at a completely different location, and this can result in a crash or can be used to force the drone to attack or spy on different targets to those originally intended.
Drone Anti-Jamming Receivers
Drone anti-jamming receivers use filtering and signal processing to reject interference, and may look for anomalies such as signals that are stronger than the usually relatively weak GNSS signals. Some receivers can handle even the most complex of jamming interference, such as frequency-hopping signals.
Anti-Spoofing & Anti-Jamming GNSS Receiver by Meteksan Defense
Anti-Jamming Antennas
Anti-jamming antennas can be used that do not require replacement of the original GNSS receiver. They can locate the direction of the jamming signal and introduce “nulls” that decrease the effectiveness of the jammers. Controlled Radiation Pattern Antennas (CRPAs) may be used to provide a dynamically controlled pattern that optimises the GNSS signal-to-noise ratio, making it easier to reject interfering signals.
GAJT®-710ML Anti-Jamming GPS Antenna by Novatel
Anti-Spoofing Technology
Anti-spoofing systems may use signals designed to prevent spoofing, such as Galileo OS-NMA and E6, or the GPS military code. They may also use advanced signal processing algorithms to detect spoofed signals by looking for anomalies. Dual polarized antennas can also be used to detect and mitigate a spoofing attack by measuring the radiation patterns of spoofed signals and comparing them to authentic satellite signals.
Anti-Jam Technology for Space-Constrained Civilian and Military Marine Applications
Anti-Jam Technology for Space-Constrained Civilian and Military Marine Applications
GPSAnti-JamTechnology (GAJT) mitigates interference and jamming by creating nulls in the antenna... ...als as well as GPS L1/L2, Galileo E1, QZSS L1/L2 and SBAS L1. GAJT uses an adaptive digital...
Single Enclosure GPS Anti‑Jam Technology (GAJT) for Land Applications
Single Enclosure GPS Anti‑Jam Technology (GAJT) for Land Applications
NovAtel’s GPSAnti-JamTechnology (GAJT) is a battle-proven assured positioning, navigation and... ...e direction of jammers, providing significant anti-jam protection even in dynamic multi-jammer...
The new navigation solution successfully demonstrated by Advanced Navigation utilizes a software-fused inertial-centred architecture and a new laser velocity sensor
Honeywell Aerospace Technologies has released the low-SWaP HGuide o480 INS featuring anti-jamming and anti-spoofing capabilities and available with single- or dual-antenna GNSS
TUALCOM participated in the Loitering Munitions Conference in Virginia, showcasing its latest technologies and sharing insights on future electronic warfare and navigation systems
Inertial Labs has introduced the M-AJ-QUATRO, an advanced anti-jamming antenna system designed to enhance A-PNT reliability in GPS/GNSS-compromised environments
Calian has released a white paper exploring GNSS vulnerabilities and highlights advanced anti-jamming technologies, including the AJ977XF antenna, to enhance signal resilience in interference-prone environments
Explore Meteksan Defence's advanced GNSS anti-jamming and anti-spoofing solutions, including their AGNOSIS system, designed to protect military platforms from signal interference in modern warfare
The new GAJT-310 from NovAtel is the company’s latest battle-proven low SWaP GNSS Anti-Jam Technology, designed for unmanned systems on land, in the air, or at sea
The Kepler Advance solution, developed by UAV Navigation and Wavenet RF Engineering, is designed to provide a reliable and robust substitute for GNSS systems
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