Micro-Doppler feature extraction method for vibration targets based on the segmental intrinsic chirp component decomposition

Based on the three-antenna interferometric radar system, a novel micro-Doppler feature extraction method for vibration targets is proposed in this study. First, the theory of interferometric processing of echo signal for vibration targets is introduced and explained. Second, short-time Fourier trans...

Full description

Saved in:
Bibliographic Details
Published in:Journal of engineering (Stevenage, England) England), 2019-10, Vol.2019 (20), p.6512-6516
Main Authors: Wenwu, Kang, Yunhua, Zhang, Xiao, Dong
Format: Article
Language:English
Subjects:
Doppler radar
echo signal
feature extraction
Fourier transforms
IET International Radar Conference (IRC 2018)
interferometric processing
microDoppler features
microDoppler parameters
novel microDoppler feature extraction method
radar antennas
radar clutter
radar interferometry
radar signal processing
segmental intrinsic chirp component decomposition
short-time fourier transform
three-antenna interferometric radar system
time-frequency analysis
time–frequency diagram
vibration targets
vibrations
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Based on the three-antenna interferometric radar system, a novel micro-Doppler feature extraction method for vibration targets is proposed in this study. First, the theory of interferometric processing of echo signal for vibration targets is introduced and explained. Second, short-time Fourier transform is conducted with the time–frequency diagram of echo signal obtained. Then, the signals received by three-antenna model are decomposed based on the segmental intrinsic chirp component decomposition. Finally, the 2D trajectory of vibration target is reconstructed and its micro-Doppler features are effectively extracted via the interferometric phase. Besides, the micro-Doppler parameters can also be estimated with the method. Two simulation experiments are conducted to validate the proposed method.
ISSN:2051-3305
2051-3305
DOI:10.1049/joe.2019.0387