Instantaneous frequency estimation of non-stationary signal

被引：0

作者：

Qi Xiaoxuan ^{[1
]}

Guo Tingting ^{[2
]}

机构：

[1] Tianjin Univ, Sch Elect Engn & Automat, Tianjin, Peoples R China

[2] Shenyang Univ, Sch Informat Engn, Shenyang, Peoples R China

来源：

PROCEEDINGS OF THE 4TH INTERNATIONAL CONFERENCE ON INFORMATION TECHNOLOGY AND MANAGEMENT INNOVATION | 2015年 / 28卷

关键词：

instantaneous frequency; hilber transformation; teager energy operator;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In signal processing, the estimation of instantaneous frequency is a kind of very important issue for non-stationary multi-component signal. Firstly, this paper adopts EMD decomposition to decompose non-stationary multi-component signal and convert into a series of single component signal. Then using the method of hilber transform and teager energy operator respectively, the instantaneous frequency of single component can be obtained. Finally, the simulation results show that adopting hilber transform can make root-mean-square error of instantaneous frequency and amplitude of fluctuation more smaller. So this method presented in the paper is feasible and effective.

引用

页码：1125 / 1129

页数：5

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