WAVELET ANALYSIS OF RADAR ECHO FROM FINITE-SIZE TARGETS

被引：54

作者：

KIM, HD

LING, H

机构：

[1] Department of Electrical and Computer Engineering, University of Texas at Austin, Austin

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 1993年 / 41卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1109/8.214611

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The wavelet analysis technique is applied to analyze the frequency-domain electromagnetic backscattered signal from finite-size targets. Since the frequency-domain radar echo consists of both small-scale natural resonances and large-scale scattering center information, the multiresolution property of the wavelet transform is well suited for analyzing such multiscale signals. Wavelet analysis examples of backscattered data from an open-ended waveguide cavity and a plasma cylinder are presented. Compared with the conventional short-time Fourier transform, the wavelet transform provides a more efficient representation of both the early-time scattering center data and the late-time resonances. The different scattering mechanisms are clearly resolved in the time-frequency representation.

引用

页码：200 / 207

页数：8

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