文章基本信息

标题：Multiple oscillations detection in control loops by using the DFT and Raleigh distribution
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作者：Kangkang Zhang ; Biao Huang ; Guoli Ji 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2015
卷号：48
期号：21
页码：529-534
DOI：10.1016/j.ifacol.2015.09.580
语种：English
出版社：Elsevier
摘要：This work introduces an oscillation detection method by analyzing the magnitude of signal after the discrete Fourier transform (DFT). Properties of Raleigh distribution are used to calculate a threshold in order to detect multiple oscillations simultaneously. The proposed algorithm is able to detect oscillations in presence of colored noise based on a statistical test. Two simulation examples are provided to verify the effectiveness of the method.
关键词：control performance analysisoscillation detectionDFTfrequency analysisRaleigh distribution