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
收藏
页码：201 / 205
页数：5
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