Selection of time-frequency distribution for extraction of micro-doppler signatures

被引：1
|
作者：
Cheng X. [1 ]
Liu J. [1 ]
Wang X.-S. [1 ]
Dai H.-Y. [1 ]
机构：
[1] School of Electronic Science and Engineering, National University of Defense Technology
来源：
Yingyong Kexue Xuebao/Journal of Applied Sciences | 2011年 / 29卷 / 04期
关键词：
Assessment criterion; Micro-Doppler; Optimal selection; Smoothed; Time-frequency distribution;
D O I：
10.3969/j.issn.0255-8297.2011.04.011
中图分类号：
学科分类号：
摘要：
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.
引用
收藏
页码：397 / 404
页数：7
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