Application on Micro-Doppler Signature of Acquisition for using Wavelet Multi-resolution Analysis
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.
Keywords：micro-Dopplerwavelet multi-resolution analysistime-frequency analysissmoothed pseudo Wigner-Ville distribution
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 40-41,48 )