Time-frequency higher-order spectra with adjustment to the instantaneous frequency variation

被引：4
|
作者：
Gelman, L. [1 ]
Petrunin, I. [1 ]
机构：
[1] Cranfield Univ, Cranfield MK43 0AL, Beds, England
来源：
INTERNATIONAL JOURNAL OF ADAPTIVE CONTROL AND SIGNAL PROCESSING | 2010年 / 24卷 / 03期
关键词：
time-frequency signal processing; higher-order spectra; instantaneous frequency; adaptation; NONSTATIONARY SIGNALS; TRANSFORM; SYSTEM;
D O I：
10.1002/acs.1096
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Novel time-frequency techniques are proposed: the short time instantaneous higher-order spectra (HOS) with adjustment to measured or known a priori time variation of the instantaneous frequency of transient signals. It is shown that the proposed transforms are more effective than the non-instantaneous HOS (i.e. without adjustment to time variation of the instantaneous frequency) in recognizing a non-stationary nonlinearity. Copyright (C) 21008 John Wiley & Sons, Ltd.
引用
收藏
页码：178 / 187
页数：10
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