地面雷达地杂波模拟

Simulation of Ground Clutter for Land-based Radar

采用相干视频信号模拟方法,对线性调频脉冲压缩雷达地杂波进行了建模与仿真。模型基于雷达杂波的后向散射特性和杂波的统计特性,考虑了地杂波的时间和空间的相关特性。仿真中利用了零记忆非线性（ZMNL）变换法产生所需的随机序列,复现了既包含振幅又包含相位的雷达杂波回波相干视频信号。仿真结果表明该方法可行。

Using the method of coherent video signal simulation,the ground clutter of linear frequency modulation pulse compression radar is modeled and simulated.These models are based on the backscattering characteristic of radar clutter and statistical characteristic of clutter,and the time and spatial correlation characteristic of ground clutter is considered.The required random data sequence is generated by the zero memory nonlinear（ZMNL） conversion method in the simulation,and the radar clutter echo coherent video signal comprising the amplitude and phase is reproduced.The simulation result shows that the method is feasible.