按多距离通道重构的杂波仿真方法  

A Clutter Simulation Method Based on Multi-range Channel Reconstruction

作　　者：汪军[1] 张智军[1] 郭博[2] 祝锋[1] 

机构地区：[1]空军工程大学工程学院,西安710038 [2]西北工业大学,西安710072

出　　处：《电讯技术》2009年第7期69-72,共4页Telecommunication Engineering

摘　　要：针对工作于中重频(MPRF)模式的机载脉冲多普勒(PD)雷达,提出了一种视频杂波信号仿真方法。该方法基于计算出的杂波功率谱,按距离通道进行时域信号重构,能够保留各距离通道内频域信息。仿真结果表明,I/Q两路视频信号进行FFT后能够反映出距离-多普勒通道的杂波二维分布,适用于杂波相干视频仿真。A clutter simulation method is proposed which can preserve the information in frequency domain in every range channel. The clutter signal is reconstructed from multi -range channel based on the calcu- lated clutter power spectral when airborne PD radar is working on the MPRF state. The simulaiton results indicate that the 2D distribution in range- doppler（RD） channel can be reflected by I/Q clutter signal which goes through the FFT, and this method can apply to the clutter coherent vedio signal simulation.

关 键 词：机载脉冲多普勒雷达 距离-多普勒 杂波功率谱 信号重构 仿真方法 

分 类 号：TN955[电子电信—信号与信息处理]