The availability of low cost global positioning system (GPS) jammer systems provides the potential for an adversary to severely limit the utility of one of the United StatesÂ’ most important navigation and timing resources. During the recent conflict in Iraq, GPS jammer systems developed by the Russian Aviaconversia Company were believed to have been used by the Iraqi Defense Forces. A system that provides accurate GPS jammer geolocation in an affordable, small size, weight, and power package will allow US forces to quickly relay information to decision makers so that an appropriate response can be formulated to eliminate or mitigate the source of the jamming signal. To meet the needs of the Army a GPS Jammer Geolocation Payload for Unmanned Aerial Vehicles (UAV) that provides high accuracy geolocation of the GPS direct sequence spread spectrum (DSSS) signal while to continuing to provide navigation information in the presence of GPS jamming will be designed and prototyped. The GPS jammer geolocation system will be an affordable capability the provides information to decision makers in support of the elimination or mitigation of jammer sources. This system payload can be expanded to a complete SIGINT collection system that can be used for both tactical military and strategic intelligence collection applications. global positioning system jammer geolocation direction finding unmanned aerial vehicle line-of-bearing inertial navigation system
