Adaptive Fourier Decomposition Based Time-Frequency Analysis

被引：0

作者：

Li-Ming Zhang ^{[1
]}

机构：

[1] the Faculty of Science and Technology,University of Macau

来源：

Journal of Electronic Science and Technology | 2014年 / 02期

关键词：

Adaptive Fourier decomposition; Fourier transform; instantaneous frequency; time frequency analysis;

D O I：

暂无

中图分类号：

TN911.6 [信号分析];

学科分类号：

080401 ; 080402 ;

摘要：

The attempt to represent a signal simultaneously in time and frequency domains is full of challenges.The recently proposed adaptive Fourier decomposition(AFD)offers a practical approach to solve this problem.This paper presents the principles of the AFD based time-frequency analysis in three aspects:instantaneous frequency analysis,frequency spectrum analysis,and the spectrogram analysis.An experiment is conducted and compared with the Fourier transform in convergence rate and short-time Fourier transform in time-frequency distribution.The proposed approach performs better than both the Fourier transform and short-time Fourier transform.

引用

页码：201 / 205

页数：5

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