应用小波变换实现弱雷达信号的实时探测

被引:4
作者
李伟
贾惠波
顾启泰
机构
[1] 清华大学精密仪器与机械学系!北京
关键词
小波; 小波分析; 信号探测;
D O I
10.16511/j.cnki.qhdxxb.2000.05.014
中图分类号
TN911 [通信理论];
学科分类号
081002 ;
摘要
为克服干扰环境下雷达识别和跟踪弱目标信号的困难 ,提出了一个基于小波变换的实时探测方法。通过分析目标和干扰的回波特征 ,采用了一种正交导数小波分析信号的局部凸性 ,并根据局部上凸区间的统计概率给出目标信号位置的探测估值。用仿真和试验数据检验方法的有效性 ,结果表明该方法能够有效判定信干比低至 - 5 d B时目标信号的位置。算法简单、稳定 ,是可行的
引用
收藏
页码:50 / 53
页数:4
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