强杂波干扰背景下高分辨雷达信号的模糊检测  

Fuzzy Detection of Signals of High-Resolution Radar in High Clutter Environments

作　　者：赵群 保铮[1] 张守宏[1] 

机构地区：[1]西安电子科技大学电子工程研究所

出　　处：《系统工程与电子技术》1995年第1期15-24,共10页Systems Engineering and Electronics

基　　金：电子工业部电科院预研基金

摘　　要：本文研究了强杂波干扰背景下运用模糊集合理论解决高分辨雷达信号的检测问题。文中首先分析了在高分辨雷达体制下获取稳定距离像的方法，并指出了传统匹配滤波方法的局限性。针对该问题，文中定义了四种模糊集合相似性测度，并在此基础上提出了一种模糊匹配滤波方法。基于文中定义的增量相似性测度准则对平均距离像采用模糊匹配滤波，实验结果表明该方法具有在强干扰背景下检测目标的良好能力，其性能明显优于传统匹配滤波方法。The problem of detecting the signals of high-resolution radar(HRR)in high clutter environments is investigated in this paper,with the use of theory of fuzzy sets.The method of ob-taining stabler range profiles is briefly discussed at first and then the limittedness of conventional matched filtering in case of HRR is pointed out.Four similarity criterion of fuzzy sets are defined and then an algorithm of fuzzzy matched filtering is proposed.Simulation results show that,the method of fuzzy matched filtering based on incremental similarity criterion,which is one of the four rules defined in this paper,has better performance than conventional matched filtering in detecting radar targets in high clutter environments.

关 键 词：雷达信号 信号检测 高分辨雷达 模糊集 

分 类 号：TN957.51[电子电信—信号与信息处理]