小波阈值消噪法在雷达信号检测中去噪效果的分析  

Analysis of Denoising Effect of Wavelet Threshold Denoising Method in Radar Signal Detection

作　　者：王炜 WANG Wei(Dalian Naval Academy of Navy,Dalian 116000,China)

机构地区：[1]海军大连舰艇学院,辽宁大连116000

出　　处：《山东工业技术》2020年第4期40-45,共6页Journal of Shandong Industrial Technology

摘　　要：雷达信号检测对目标识别判性有着重要影响,也是雷达研究设计中的关键环节。本文在分析传统雷达目标信号检测的基础上,提出在雷达信号检测中运用小波分析去噪的设想,运用MATLAB进行仿真实验,模拟雷达回波信号。运用阈值消噪法分别在软硬阈值标准下,采用不同的阈值选择准则去噪,通过对比实验数据,分析研究最适合于雷达信号检测的阈值选择标准,总结出在雷达实际工作中该如何选择有效的去噪方式。The noise has an adverse impact on the detection accuracy of radar systems. As an important indicator of the radar performance, the detection accuracy requires additional care in the design of radar hardware and signal processing chain. Based on the analysis of traditional radar systems, to reduce noise the wavelet methods are investigated, where both the soft and hard threshold standards are considered. Based on the simulations with MATLAB, the threshold selection rules are clarified to facilitate the employment of the wavelet de-noising methods in real practice.

关 键 词：雷达信号检测 小波分析 阈值去噪 MATLAB 

分 类 号：TJ06[兵器科学与技术—兵器发射理论与技术]