论文部分内容阅读
由于缺少SAR散射波干扰真实数据,建立了SAR散射波干扰的物理模型,分析了地面散射点的分布特征,给出了仿真结果.结果表明,对于极度粗糙地表和中等粗糙地表,散射波干扰充斥于SAR的整个波束,不能采用空间滤波的方式进行干扰抑制;对于中等粗糙地表,增加快时间采样点数,可以增加相关散射点的数量,因此可以用空间-快时间自适应滤波的方法提高干扰抑制性能.
Due to the lack of real data of SAR scattered wave interference, the physical model of SAR scattered wave interference is established and the distribution characteristics of ground scattered points are analyzed, and the simulation results are given. The results show that for the extremely rough and medium rough surface, For the entire beam of SAR, interference suppression can not be performed by spatial filtering. For medium rough surface, increasing the number of fast time sampling points can increase the number of relevant scattering points, so space-fast adaptive filtering can be used to improve the interference suppression performance.