Motion Compensation for Long Time Integration in Passive Radar Scenarios with High-Speed Manoeuvring Target

A multistage Range-Doppler migration compensation architecture for long integration time in passive radar signal processing is proposed to improve the detection capabilities of high-speed maneuvering targets. Long integration processing intervals are considered to improve target detection, but during this time target dynamics can extend the backscattering in more than one range or Doppler cells. To control the gain processing reduction, a combination of detection, tracking, feature extraction, and filtering techniques is designed to provide adaptation to the unknown targets’ trajectories. The proposed methodology is validated with real data acquired by the passive radar demonstrator developed by the University of Alcalá (IDEPAR), and the results confirm the performance improvement.