舰船电子工程2012，Vol.32Issue(12)：40-41,48,3.
小波多尺度分析在目标微运动特征提取中的应用
Application on Micro-Doppler Signature of Acquisition for using Wavelet Multi-resolution Analysis
摘要
Abstract
Mechanical vibrations or rotations of structures on a target may introduce frequency modulation on the radar returns.This is called micro-Doppler phenomenon.In this experiment,the time domain radar signal is decomposed into a set of components that are represented by different wavelet scales.The micro-Doppler features are extracted by sorting the components that are associated with the vibrational/rotational motions of a target and is achieved by reconstruction.Then the micro-motion information can be obtained by joint time-frequency analysis.Results show that three-level decomposition and reconstruction is sufficient to extract micro-Doppler features,and it provide an important tool and method for acquiring micro-Doppler signature.关键词
微多普勒/小波多尺度分析/时-频分析/平滑伪WigneR-Ville分布Key words
micro-Doppler/wavelet multi-resolution analysis/time-frequency analysis/smoothed pseudo Wigner-Ville distribution分类
信息技术与安全科学引用本文复制引用
孙洋,辛爱学,贺琦..小波多尺度分析在目标微运动特征提取中的应用[J].舰船电子工程,2012,32(12):40-41,48,3.
