Abstract:

Thanks to the unceasing renewal of the stealthy plane,the radar cross section is getting smaller and smaller.And the stealthy plane is required to keep radio silence in mission.So the passive detection system based on accepting and processing the stealth plane's signal is in failure.In this paper,a passive detection system based on the third-party signal is designed to detect the stealthy target.Simulations are also done to study the distance range based on accepting and reflecting the third-party signal.It is shown that the passive detection system based on third-party signal is feasible in the detection of the stealth plane.

Key words: passive detection;time-difference positioning;digital receivers