Moving Target Detection and Parameter Estimation Using BeiDou GEO Satellites-Based Passive Radar with Short-Time Integration

Owing to the global coverage and high visibility of navigation satellite systems (GNSS), passive radar using GNSS satellites as transmitters opportunity has shown great potential for moving target detection, its possibility detect short-range maritime targets been verified. Nevertheless, existing methods always require tens seconds echo integration, which is not ideal detection with maneuverability. To solve this problem, a bistatic configuration BeiDou geostationary earth orbit (GEO) illuminators opportunity, suited short-time coherent integration signals, presented. In addition, corresponding signal processing method introduced. achieve more continuous trajectory target, used fuse range-Doppler maps obtained individually from multiple GEO also described. The effectiveness functionality our proposed algorithms are demonstrated an experiment in ferry was real-time location data were adopted reference.