基于冲激雷达的运动体目标检测算法  

Detection Algorithm for Moving Target Based on Impulse Radar

作　　者：周宇翔[1] 魏国华[1] 吴嗣亮[1] 

机构地区：[1]北京理工大学信息科学技术学院,北京100081

出　　处：《数据采集与处理》2007年第2期206-211,共6页Journal of Data Acquisition and Processing

摘　　要：针对冲激雷达脱靶量测量中的检测问题,提出了一种新的时域多门限信号检测算法。根据冲激雷达的特点,首先采用距离门等效采样方法对运动体目标回波采样,并在此基础上,利用多门限对各距离门采样信号进行散射点回波的检测,进而通过各散射点回波平均功率的求取实现对各散射点回波的识别,从而解决了后续数据处理中信号检测精度过低和散射点无法识别的问题。仿真结果表明该算法可得到满意的检测结果。In order to realize detection of missle miss disance measurement system based on impulse radar, a new detection method based on multi-thresholds is presented. Firstly, aceroding to the echo characteristic of moving target, the range gate method can realize equivalent sampling. Then the detection method for multi-thresholds in time domain can realize the detection of scatters and elimination of noise in every range gate. By computing the average power of every scatter point echo by the detection result, every scatter can be identified. The detection algorithm can resolve the problems of low detection precision and scatter identifying in subsequent data processing. Simulation results indicate that the algorithm is effective in echo detection.

关 键 词：冲激雷达 等效采样 距离门 多门限 

分 类 号：TN957.524[电子电信—信号与信息处理]