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
收藏
页码：200 / 207
页数：8
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