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A dynamic clutter interference suppression method for multiple static human targets detection using ultra‐wideband radar.

Authors :
Xue, Huijun
Liu, Miao
Lv, Hao
Jiao, Teng
Li, Zhao
Qi, Fugui
Wang, Pengfei
Wang, Jianqi
Zhang, Yang
Source :
Microwave & Optical Technology Letters. Dec2019, Vol. 61 Issue 12, p2854-2865. 12p. 3 Diagrams, 1 Chart, 7 Graphs.
Publication Year :
2019

Abstract

Postdisaster search and rescue is an important application of ultra‐wideband radar system, which mainly detects survivors by their respiratory‐motion response. In the application of detecting multiple human targets, owing to faint amplitude of human chest movement and high attenuation of electromagnetic wave, the motionless living human targets cannot be discriminated accurately, especially in a complex rescue condition with dynamic clutter interference. In this article, on account of the significant difference of frequency components between the echo signal of tested target and that of illusive target produced by dynamic clutter, an algorithm based on wavelet entropy is proposed. Compared with the reference algorithms of adaptive line enhancement and energy accumulation, the wavelet entropy can accurately detect multiple human targets under the condition of dynamic clutter interference, even though the human targets stand far away locate in the shadowing region caused by the closer one. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
08952477
Volume :
61
Issue :
12
Database :
Academic Search Index
Journal :
Microwave & Optical Technology Letters
Publication Type :
Academic Journal
Accession number :
139027685
Full Text :
https://doi.org/10.1002/mop.31973