Target Detection of Passive Bistatic Radar under the Condition of Impure Reference Signal

This paper addresses the issue of reference signal being contaminated by target echoes due to factors such as wide beamwidths, beam pointing errors, or site errors in passive bistatic radar (PBR). Such contamination can lead impurity and subsequently degrade performance traditional object detection methods. To overcome this challenge, a novel method centered around signal’s purification is presented. The proposed involves modeling, analysis, localization, impure signal. First, new model incorporating established, followed comprehensive analysis its impact on detection. Then, leveraging valuable information hidden signal, within are localized reconstructed. Finally, reconstructed subtracted from original purify Based purified performed detect expected targets. core advantage lies efficient reconstruction removal terms effectiveness demonstrated through series simulation results.