基于多抽样率信号处理的无源雷达MTD方法

以数字电视信号为机会照射源的雷达系统研究为背景 ,提出用以多抽样率信号处理为基础的多级抽取信号处理算法解决运动目标检测中海量数据处理问题。文中叙述了数字电视广播信号回波的数学模型、多级抽取基本原理、目标检测算法 ,以数字电视信号为反射回波做了仿真 ,对运动目标进行检测 ,并对仿真结果做了分析。

A Method of Moving Target Detection in Passive Radar Based on Multisampling Signal Processing

On the background of study about incoorperative radar system based on digital television broadcasting, a new method is proposed in this paper to resolve the problem of enormous data processing load in moving target detection, which is based on multisampling signal processing. A mathematical model of DTV broadcasting signal has been set up before reviewing theories of multistage decimation and describing the algorithm of moving target detection. At last an analysis on results of simulation is available, which shows the efficiency of the algorithm in reducing data scale and increasing SNR.