On Instantaneous Frequency

被引：0

作者：

Huang, NE ^{[1
]}

Xiang, D ^{[1
]}

Long, SR ^{[1
]}

机构：

[1] NASA, Goddard Space Flight Ctr, Lab Hydrospher Proc, Greenbelt, MD 20771 USA

来源：

6TH WORLD MULTICONFERENCE ON SYSTEMICS, CYBERNETICS AND INFORMATICS, VOL XIV, PROCEEDINGS: IMAGE, ACOUSTIC, SPEECH AND SIGNAL PROCESSING III | 2002年

关键词：

Instantaneous Frequency; time-frequency analysis; nonstationary and nonlinear; time series analysis; Hilbert spectrum; wavelet analysis; Empirical Mode Decomposition method; Hilbert-Huang transform (HHT);

D O I：

暂无

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

The problems related to Instantaneous Frequency (IF) are discussed. The need for a quantity such as IF is clear. Three different approaches, the Hilbert Transform (HT), the Teager Energy Operator (TEO) and the Generalized Zero-Crossing (GZC) are presented. Each of these methods has its own strengths and weaknesses. In general, the HT method gives the most consistently acceptable results when the data is both nonstationary and nonlinear.

引用

页码：271 / 275

页数：5

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