Preliminary application of GPS in war
The GPS positioning system was first used on a large scale in the 1991 Gulf War, showing its great potential in modern warfare. By using GPS receivers carried in jacket pockets, Allied forces were able to operate effectively in mapless deserts. These receivers provide precise position information and solve navigation problems in complex terrain.
In addition, GPS technology is also used in the inertial navigation/GPS module integrated system, allowing the hit accuracy of missiles and guided bombs to reach 9 meters. These systems allow airborne bombs to carry out precise strikes at night and in adverse weather conditions, significantly improving the Allied Forces' combat capabilities.
GPS technology breakthrough in the new century
With the development of technology, GPS positioning systems have shown greater potential in military applications. The following are several important trends in the future development of GPS technology:
Innovative track design
Europe has made significant progress in navigation and positioning satellite research. The first-generation systems include the Global Navigation Satellite System (GNSS) and the European Geostationary Navigation Overlay Service System (EGNOS), which combine the advantages of GPS positioning and geostationary communications satellites. The "Galileo" solution in the second-generation system adopts an innovative orbit design. It is an independent system, is open, and is compatible with GPS. This system also has broad application prospects in civil aviation, safe approach and landing of aircraft and other fields.
Development of anti-jamming and jamming technologies
In order to prevent enemy interference, the United States will use a new signal structure on the seventh GPS-2F satellite launched in 2005 to improve signal confidentiality and anti-interference capabilities. The United States is developing a GPS receiver application module (GRAM) that is immune to interference and spoofing and a selectively exploitable anti-spoofing module (SAASM). Receivers equipped with these two GPS modules are called "Department of Defense Advanced GPS Receivers" ( DARG). In addition, the United States is also developing microstrip adaptive antenna arrays to protect military aircraft from using GPS, and has developed small GPS jammers to prevent enemies from receiving GPS signals.
