Nonlinear Estimation of Coherent Phase Vibrations for Statistical Signals through Multivariable Analyses

	Nonlinear Estimation of Coherent Phase Vibrations for Statistical Signals through Multivariable Analyses
	Deng LH(邓林华); Deng LH(邓林华)
	2015
会议名称	7th International Conference on Digital Image Processing (ICDIP)
会议日期	2015-04-09
会议地点	Los Angeles, CA
关键词	Cross-recurrence plot line of synchronization cross-wavelet transform nonlinear signal processing
卷号	9631
通讯作者	Deng, LH (reprint author)，Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
英文摘要	Three nonlinear analysis techniques, including cross-recurrence plot, line of synchronization, and cross-wavelet transform, are proposed to estimate the coherent phase vibrations of nonlinear and non-stationary time series. The case study utilizes the monthly averages of sunspot areas during the time interval from May 1874 to August 2014. The following prominent results are found: (1) the phase-leading hemisphere of long-term sunspot areas has changed twice in the past 140 years, indicating that the hemispheric imbalances and apparent phase differences on both hemispheres are a prevalent behavior and are not anomalous; (2) the alternating regularity of hemispheric asynchronism exhibits a cyclical pattern of 4.5+3.5 cycles, and the magnetic flux excess in a certain hemisphere during the ascending branch of a cycle can be taken as an indication of the phase-leading hemisphere in this cycle. We firmly believe that powerful nonlinear approaches are more advanced than classical linear methods when they are combined to determine the dynamic complexity of nonlinear physical systems.
收录类别	EI ; CPCI
产权排序	第一完成单位
会议网址	http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2389149
会议录	Proceedings of SPIE - SEVENTH INTERNATIONAL CONFERENCE ON DIGITAL IMAGE PROCESSING (ICDIP 2015)
会议录出版者	SPIE-INT SOC OPTICAL ENGINEERING
会议录出版地	1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010
学科主题	Engineering; Optics; Imaging Science & Photographic Technology
语种	英语
ISSN号	0277-786X
ISBN号	978-1-62841-829-3
内容类型	会议论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4880]
专题	云南天文台_抚仙湖太阳观测站
通讯作者	Deng LH(邓林华)
推荐引用方式 GB/T 7714	Deng LH,Deng LH. Nonlinear Estimation of Coherent Phase Vibrations for Statistical Signals through Multivariable Analyses[C]. 见:7th International Conference on Digital Image Processing (ICDIP). Los Angeles, CA. 2015-04-09.http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2389149.