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

页码：178 / 187

页数：10

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