GPS (Global Positioning System) and GNSS (Global Navigation Satellite System) are global satellite-based navigation systems that provide location and time synchronization worldwide. These systems play a key role in many military, civil and commercial applications.
GPS and GNSS systems allow devices or receivers to determine their position in the world using satellite signals. However, possible interventions or attempts to intervene against these signals may affect the reliability of these systems. Systems used to protect against such interventions are called “GPS / GNSS Anti-Jam Systems.
GPS / GNSS Anti-Jam Systems can operate in the following ways:
Antenna Design: Anti-jamming antenna design optimizes the physical structure of the antennas to minimize enemy signal intervention or jamming. This can help receivers capture stronger and clearer signals better.
Frequency Diversification (Frequency Hopping): In this method, receivers change the signal frequency randomly, so the enemy’s jamming attempts become more difficult.
Weakened Signal Regeneration: This approach helps receivers rebuild weakened or distorted signals and detect a clear position.
Anti-Jamming Algorithms: GPS / GNSS receivers can use anti-jamming algorithms by analyzing incoming signals and recognizing possible jamming attempts. These algorithms can increase position sensitivity by detecting and correcting the interfered signals.
Multiple Receiver Technique: It may be possible to define and filter jamming attempts by using multiple receivers and comparing the signals of these receivers.
GPS / GNSS Anti-Jam Systems is critical, especially in military applications. Because enemies can perform GPS or GNSS signal interventions to prevent or mislead military units from detecting or tracking their positions. Therefore, military devices are often equipped with GPS / GNSS Anti-Jamming technologies.
These systems are also important in civil and commercial applications because signal interventions can cause security risks in maritime, aviation, transport and many other areas. Therefore, GPS / GNSS Anti-Jam Systems is used to provide reliable and uninterrupted service for any application that requires precise positioning.