系统工程与电子技术

• 传感器与信号处理 • 上一篇    下一篇

基于统计特性差异的距离多假目标识别技术

孙殿星1,2, 王国宏1, 盛丹1, 杨忠1, 贺达超1   

  1. 1. 海军航空工程学院信息融合研究所, 山东 烟台 264001;
    2. 国防科学技术大学电子科学与工程学院, 湖南 长沙 410005
  • 出版日期:2017-03-23 发布日期:2010-01-03

Technique for multi-range false target jamming identification based on statistical characteristic discrepancy

SUN Dianxing1,2, WANG Guohong1, SHENG Dan1, YANG Zhong1, HE Dachao1   

  1. 1.Institute of Information Technology, Naval Aeronautical and Astronautical University,Yantai 264001, China;2. College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China
  • Online:2017-03-23 Published:2010-01-03

摘要:

提出了一种基于角度量测统计特性差异的雷达距离多假目标欺骗干扰识别方法。首先针对传统的角度量测卡方检验方法容易将相同角度分辨单元内的多个真实目标误判为距离多假目标干扰的问题,利用虚假目标与真实目标距离量测之差的均值通常为时不变常数的特点,将角度量测卡方检验与距离量测差均值和方差联合检验相结合,实现了距离多假目标干扰存在性的准确判别;然后对多个时刻量测进行积累,并通过对应时刻角度量测做差,构造样本集合;最后利用虚假目标比真实目标角度量测方差大的特点,采用量测方差聚类划分的方法,实现了真假目标的准确鉴别。

Abstract:

A radar multi-range false target jamming identification method based on statistical characteristic discrepancy of angle measurements is proposed. Firstly, real targets in the same angle recognition cell are easily mistaken for multirangefalsetarget jamming based on the conventional angle measurements chi-square test. However, the mean value of range measurements difference is time invariant. So that, the existence of the multi-range false target jamming is judged exactly based on the angle measurements chi-square test and the mean variance united test of range measurements difference. Then the measurements are accumulated, and the difference of angle measurements is used to construct a sample set. Finally, the false targets are discriminated from the true target based on the measurements variance clustering, because the variance of false targets is larger than the true target’s variance.