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Comparison between Windowed FFT and Hilbert-Huang Transform for analyzing time series with Poissonian fluctuations: A case study
Han, D; Zhang SN(张双南); Zhang, SN
2006
发表期刊CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
卷号6期号:4页码:503-512
通讯作者Tsing Hua Univ, Dept Engn Phys, Beijing 100084, Peoples R China ; Tsing Hua Univ, Ctr Astrophys, Beijing 100084, Peoples R China ; Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
摘要Hilbert-Huang Transform (HHT) is a novel data analysis technique for nonlinear and non-stationary data. We present a time-frequency analysis of both simulated light curves and an X-ray burst from the X-ray burster 4U 1702-429 with both the HHT and the Windowed Fast Fourier Transform (WFFT) methods. Our results show that the HUT method has failed in all cases for light curves with Poissonian fluctuations which are typical for all photon counting instruments used in astronomy, whereas the WFFT method can sensitively detect the periodic signals in the presence of Poissonian fluctuations; the only drawback of the WFFT method is that it cannot detect sharp frequency variations accurately.
文章类型Article
关键词methods : data analysis stars : oscillations (including pulsations) X-rays : bursts
学科领域Astronomy & Astrophysics
DOI10.1088/1009-9271/6/4/14
研究领域[WOS]Astronomy & Astrophysics
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语种英语
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000239902800014
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/237744
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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Han, D,Zhang SN,Zhang, SN. Comparison between Windowed FFT and Hilbert-Huang Transform for analyzing time series with Poissonian fluctuations: A case study[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2006,6(4):503-512.
APA Han, D,张双南,&Zhang, SN.(2006).Comparison between Windowed FFT and Hilbert-Huang Transform for analyzing time series with Poissonian fluctuations: A case study.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,6(4),503-512.
MLA Han, D,et al."Comparison between Windowed FFT and Hilbert-Huang Transform for analyzing time series with Poissonian fluctuations: A case study".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 6.4(2006):503-512.
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