A DIRECT EVALUATION OF MONO-COMPONENTS BY INSTANTANEOUS FREQUENCY
Niu, Kaifu; Peng, Lizhong; Peng, Silong; KAIFU NIU
发表期刊INTERNATIONAL JOURNAL OF WAVELETS MULTIRESOLUTION AND INFORMATION PROCESSING
2012-05-01
卷号10期号:3
文章类型Article
摘要We present a new criterion based on instantaneous frequency (IF) to distinguish mono-components (MCs). We first notice that the "offset of local extremum" caused by low-frequency envelope is often significant on envelope extraction, which determines the calculation of IF for MCs. We estimate the upper and lower bounds of the offset for a general family of signals. Conducted by the offset estimation, we propose a direct and effective algorithm to calculate IF. Our algorithm, which is based on an empirical pursuit of knots and natural splines, provides an accurate estimation of the envelope and derives a well-behaved IF. A theoretical explanation for the good approximation of proposed envelope is also stated. Experiment results show the fast convergence of our algorithm, which leads to a reliable IF and local mean to provide a flexible criterion for MC classification. We emphasize that it is important to pursue a certain balance among different requirements to define MC depending on specific applications Read More: http://www.worldscientific.com/doi/abs/10.1142/S0219691312500282
关键词Mono-component Signal Instantaneous Frequency Envelope Offset Of Local Extremum Weak Intrinsic Mode Function read More: Http://www.worldscientific.com/doi/abs/10.1142/s0219691312500282
WOS标题词Science & Technology ; Technology ; Physical Sciences
关键词[WOS]EMPIRICAL MODE DECOMPOSITION ; SIGNAL DECOMPOSITION
收录类别SCI
语种英语
WOS研究方向Computer Science ; Mathematics
WOS类目Computer Science, Software Engineering ; Mathematics, Interdisciplinary Applications
WOS记录号WOS:000304675400008
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/2912
专题智能制造技术与系统研究中心_多维数据分析
通讯作者KAIFU NIU
推荐引用方式
GB/T 7714
Niu, Kaifu,Peng, Lizhong,Peng, Silong,et al. A DIRECT EVALUATION OF MONO-COMPONENTS BY INSTANTANEOUS FREQUENCY[J]. INTERNATIONAL JOURNAL OF WAVELETS MULTIRESOLUTION AND INFORMATION PROCESSING,2012,10(3).
APA Niu, Kaifu,Peng, Lizhong,Peng, Silong,&KAIFU NIU.(2012).A DIRECT EVALUATION OF MONO-COMPONENTS BY INSTANTANEOUS FREQUENCY.INTERNATIONAL JOURNAL OF WAVELETS MULTIRESOLUTION AND INFORMATION PROCESSING,10(3).
MLA Niu, Kaifu,et al."A DIRECT EVALUATION OF MONO-COMPONENTS BY INSTANTANEOUS FREQUENCY".INTERNATIONAL JOURNAL OF WAVELETS MULTIRESOLUTION AND INFORMATION PROCESSING 10.3(2012).
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