在充分考虑双基地工作和机载工作特点的条件下 ,首先建立空基双基地雷达地杂波的等椭圆几何关系模型 ,然后计算分析了空基双基地雷达的地面反射率 ,最后提出一种通用的空基双基地雷达地杂波模型。在该模型的基础上分析了空基双基地雷达地杂波特性 ,并仿真分析了不同几何配置和运动配置下空基双基地雷达地杂波的多普勒特性和地杂波脊特性 ,结果表明地杂波特性敏感于空基双基地雷达的几何和运动配置 ,合理的配置可以降低信号处理中地杂波的影响

By fully considering the operating characteristics of bistatic radar and airborne early warning (AEW) radar, a general ground clutter model for space-based bistatic radar(SBBR) is presented basing on the isometry ellipse geometry model of SBBR and the ground clutter reflectivity. The bistatic radar ground clutter characteristics are also analyzed. Finally, the bistatic radar ground clutter Doppler characteristics and clutter ridge are simulated with different geometry and movement configuration. The results show that the ground clutter characteristics of SBBR is highly sensitive to the configurations and the influence of ground clutter to signal processing can be reduced with a rational configuration.

TN957