中文

Journal of Applied Sciences >

2011 , Vol. 29 >Issue 4: 397 - 404

DOI: https://doi.org/10.3969/j.issn.0255-8297.2011.04.011

Communication Engineering

Selection of Time-Frequency Distribution for Extraction of Micro-Doppler Signatures

Expand
  • School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China

Received date: 2010-11-16

  Revised date: 2011-05-23

  Online published: 2011-07-30

Supported by

王雪松，博士，教授，博导，研究方向：新体制雷达探测、雷达极化信息处理、雷达电子战建模与仿真等，E-mail: wxsl0l9@
vip.sina.com

Fold

Abstract

Aim at selection of time-frequency distribution (TFD) in the analysis of radar micro-Doppler
signature, we carry out theoretical analysis of the characteristics of micro-Doppler signal’s TFD. For multicomponent
micro-Doppler signal, specifications of TFD are given by criteria of objective assessment of the
TFD performance. Furthermore, a procedure of selecting optimal TFD for a given multi-component micro-
Doppler signal is provided. Simulation shows that the smoothed pseudo Wigner-Ville distribution has optimal
performance among the tested TFDs. The result provides guidance for TFD selection in the extraction of
micro-Doppler signatures and estimation of high-precision instantaneous frequency.

Key words：  micro-Doppler, time-frequency distribution, assessment criterion, optimal selection, smoothed pseudo Wigner-Ville distribution

Cite this article

CHENG Xu, LIU Jin, WANG Xue-song, DAI Huan-yao . Selection of Time-Frequency Distribution for Extraction of Micro-Doppler Signatures[J]. Journal of Applied Sciences, 2011 , 29(4) : 397 -404 . DOI: 10.3969/j.issn.0255-8297.2011.04.011

Options
Outlines

/

〈 〉