空天混合双基地雷达杂波建模

为了研究空天混合双基地雷达中的杂波特性和杂波抑制算法,提高对慢速目标的检测性能,该文分析了空天混合双基地雷达的几何关系,获得杂波等距离环的解析解并建立了杂波模型。同时基于该模型,对几种特定空间几何配置下的杂波等距离环和杂波角度Doppler线进行了仿真分析。结果表明混合模式的杂波特性对卫星平台速度和位置更加敏感,合理的双基地几何配置可以提高空时二维信号处理的性能,达到更好的最小可检测速度。

Clutter modeling for Hybrid bistatic space-based radar

Hybrid bistatic space-based radar(HB-SBR) uses a transmitter on a satellite with the receiver on the airplane.Clutter modeling is introduced to reduce clutter and improve slow-moving target detection in HB-SBR.Simulations of the clutter isorange contours and clutter angle-doppler traces for varies geometries shows that the clutter characteristics of the hybrid bistatic mode are very sensitive to the satellite characteristics and a better minimum detection velocity can be achieved with the proper bistatic configuration.