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

共 19 条

[11] KIM H, 1992, ELECTRON LETT, V3, P279
[12] ELECTROMAGNETIC SCATTERING FROM AN INHOMOGENEOUS OBJECT BY RAY TRACING
KIM, HD
LING, H
[J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1992, 40 (05) : 517 - 525
[13] LEE SW, 1989, SWL891 U ILL EL LAB
[14] Ling H., 1992, IEEE Microwave and Guided Wave Letters, V2, P140, DOI 10.1109/75.129438
[15] HIGH-FREQUENCY RCS OF OPEN CAVITIES WITH RECTANGULAR AND CIRCULAR CROSS-SECTIONS
LING, H
LEE, SW
CHOU, RC
[J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1989, 37 (05) : 648 - 654
[16] MULTIFREQUENCY CHANNEL DECOMPOSITIONS OF IMAGES AND WAVELET MODELS
MALLAT, SG
[J]. IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1989, 37 (12): : 2091 - 2110
[17] MOGHADDAR A, 1991, IN PRESS IEEE T ANTE
[18] SINGULARITY EXPANSION REPRESENTATIONS OF FIELDS AND CURRENTS IN TRANSIENT SCATTERING
MORGAN, MA
[J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1984, 32 (05) : 466 - 473
[19] [No title captured]

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