Doppler spectrogram analysis of human gait via iterative adaptive approach

被引：16

作者：

Du, L. ^{[1
]}

Li, J. ^{[1
]}

Stoica, P. ^{[2
]}

Ling, H. ^{[3
]}

Ram, S. S. ^{[3
]}

机构：

[1] Univ Florida, Dept Elect & Comp Engn, Gainesville, FL 32611 USA

[2] Uppsala Univ, Dept Informat Technol, Uppsala, Sweden

[3] Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 78712 USA

来源：

ELECTRONICS LETTERS | 2009年 / 45卷 / 03期

基金：

美国国家科学基金会; 欧洲研究理事会; 瑞典研究理事会;

关键词：

TIME-FREQUENCY; REPRESENTATIONS;

D O I：

10.1049/el:20092769

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：

Doppler spectrogram analysis of the human gait is a useful tool for discriminating various microDoppler tracks due to the movements of different body parts. A data-dependent algorithm, namely the short-time iterative adaptive approach, is used to obtain a more accurate spectrogram than the one provided by the conventional short-time Fourier transform-based approaches. The performance of the approaches is demonstrated and contrasted using both simulated and measured human gait data.

引用

页码：186 / 188

页数：3

共 10 条

[1] IMPROVING THE READABILITY OF TIME-FREQUENCY AND TIME-SCALE REPRESENTATIONS BY THE REASSIGNMENT METHOD [J].

AUGER, F ;

FLANDRIN, P .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1995, 43 (05) :1068-1089

[2]

Boulic R., 1990, Visual Computer, V6, P344, DOI 10.1007/BF01901021

[3]

Cohen L, 1995, Time-frequency analysis

[4]

DU L, 2008, 42 AS C SIGN SYST CO

[5] Sparse time-frequency representations [J].

Gardner, TJ ;

Magnasco, MO .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2006, 103 (16) :6094-6099

[6] ANALYSIS OF TIME-VARYING SIGNALS WITH SMALL BT VALUES [J].

KODERA, K ;

GENDRIN, R ;

VILLEDARY, CD .

IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1978, 26 (01) :64-76

[7] Analysis of microDopplers from human gait using reassigned joint time-frequency transform [J].

Ram, S. S. ;

Ling, H. .

ELECTRONICS LETTERS, 2007, 43 (23) :1309-1311

[8] Model-order selection [J].

Stoica, P ;

Selén, Y .

IEEE SIGNAL PROCESSING MAGAZINE, 2004, 21 (04) :36-47

[9]

Stoica P., 2005, SPECTRAL ANAL SIGNAL

[10]

YARDIBI T, 2008, 42 AS C SIGN SYST CO

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