Abstract:

To meet the demand of aircraft swarm autonomously anti-stealth, a bistatic airborne radar system concept is proposed, where the airborne radar of any member in the aircraft swarm can be designed as bistatic radar transmitter while the others are designed as the radar receivers. Benefiting from the space diversity design, the swarm members can detect the scattered radar electromagnetic energy from different directions of the stealth target and find out the stealth aircraft. Based on this concept,this paper calculates the anti-stealth airspace range of the bistatic airborne radar system when the radar receivers are placed at different distance and different direction. To eliminate the blind area caused by the radar scanning angle in the swarm forward detecting airspace, three basic types of maneuver strategies of the swarm aircrafts are put forward. The simulation results indicate that, all the radar nodes in aircraft swarm can possess the anti-stealth ability but of various detecting area size and shapes, and different swarm configuration suits different anti-stealth needs in different threat level airspace. The strategy that keeps the radar transmitter node flying in S-type way can fill the swarm detecting gaps.