小波消噪——AR谱分析在昆虫雷达多目标检测中的应用  

Application of Wavelet Transform and AR Model Spectral Estimation on Insert Radar Multiple Targets Detection

作　　者：沈莉丽[1] 

机构地区：[1]南京航空航天大学金城学院,江苏省南京市211156

出　　处：《信息化研究》2010年第6期45-48,共4页INFORMATIZATION RESEARCH

摘　　要：针对昆虫雷达多目标检测中,由于接收机的泄漏以及地物杂波干扰,采用常用的功率谱进行分析时,昆虫目标信息被背景噪声所淹没,无法判别出目标高度位置。文中介绍了小波消噪与AR谱相结合对昆虫雷达的回波信号进行分析的方法,分析结果表明:小波消噪——AR谱分析能分离背景噪声的干扰,有效地分辨出昆虫目标高度信息。Because of the leakage of the receiver and the interference of ground clutter on insert radar multiple targets detection, the insect targets information has been overwhelmed by background noise, and can not determine the targets altitude location by used spectrum analysis. This article describes the method of wavelet de-noising combined with the AR spectrum which analysis the signal of insert targets. The results shows that the wavelet de-nosing and AR spectrum analysis not only can separate the interference of background noise, but also can identify the insert target height information.

关 键 词：小波变换 AR谱分析 昆虫雷达 多目标检测 

分 类 号：TN911[电子电信—通信与信息系统]