Spectrum analysis by autoregressive methods: Performance on application to stationary signals

In order to develop a method capable of determining the time variant spectrum of time series, various existing approaches have been investigated. Although the Fourier-based methods are superior in their computational efficiency, their inherent characteristics may sometimes limit applications. The AR...

全面介紹

Saved in:
書目詳細資料
Main Authors: Kamata, Minoru, Ngamsritragul, Panyarak
其他作者: Mechanical Engineering
格式: Article
語言:English
出版: The Japan Society of Mechanical Engineers 2011
主題:
在線閱讀:http://kb.psu.ac.th/psukb/handle/2010/7191
標簽: 添加標簽
沒有標簽, 成為第一個標記此記錄!
機構: Prince of Songkhla University
語言: English
實物特徵
總結:In order to develop a method capable of determining the time variant spectrum of time series, various existing approaches have been investigated. Although the Fourier-based methods are superior in their computational efficiency, their inherent characteristics may sometimes limit applications. The AR method gives the best results even for small data sets. However, insufficient information is available for determining its applicability. In this report, a brief review, as well as the performance, of various AR methods applied to a certain class of stationary time series is systematically documented. The covariance method is found to be the best solution for the determination of AR coefficients, and many trials using sinusoidal data sets indicate the usefullness and applicability of AR-based spectrum analysis.