文章基本信息

标题：Time-frequency Analysis of Track Irregularity Based on Orthogonal Empirical Mode Decomposition
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作者：Ling Zhao ; Darong Huang ; Honggang Wang 等
期刊名称：TELKOMNIKA (Telecommunication Computing Electronics and Control)
印刷版ISSN：2302-9293
出版年度：2016
卷号：14
期号：3A
页码：237-243
DOI：10.12928/telkomnika.v14i3A.4400
出版社：Universitas Ahmad Dahlan
摘要：A method of extracting transient features of a non-stationary signal was proposed based on the combination of orthogonal empirical mode decomposition (OEMD) and the Hilbert transform. After obtaining orthogonal intrinsic mode functions, the instantaneous frequency and amplitude can be calculated, so problems existing in the original Hilbert-Huang Transform（HHT）method, such as mode aliasing, can be solved. The track irregularity signal is studied with the OEMD method, and the statistical and analytic result indicates that there are relatively serious short wave and long wave
其他摘要：A method of extracting transient features of a non-stationary signal was proposed based on the combination of orthogonal empirical mode decomposition (OEMD) and the Hilbert transform. After obtaining orthogonal intrinsic mode functions, the instantaneous frequency and amplitude can be calculated, so problems existing in the original Hilbert-Huang Transform（HHT）method, such as mode aliasing, can be solved. The track irregularity signal is studied with the OEMD method, and the statistical and analytic result indicates that there are relatively serious short wave and long wave