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	A novel instantaneous phase difference estimator: piecewise maximum cross-correlation function
	Gu xiaoan; Liu jia; Gong xiping
	2011
会议名称	2011 International Conference on Information and Automation, ICIA 2011
会议地点	shenzhen
英文摘要	The instantaneous phase synchrony estimation of biomedical signals is of increasing concern in terms of revealing bivariate dynamics of biological systems. Theestimation of phase synchronization contains two major parts: the phase difference estimation and the synchronization index calculation. In recent studies of cerebral autoregulation (CA), a number of instantaneous phase difference estimation methods have been proposed to study instantaneous dynamic between arterial blood pressure (ABP) and cerebral blood flow velocity (CBFV). In this study, we took complex Morlet wavelet (CMW), the most widely used method as an example to discuss the possible limitations and propose a time-shift based method, piecewise maximum cross correlation function (PMCC) method. The analysis and the results show that PMCC avoids the trade-off between time and frequency resolution which exists in wavelet or short time Fourier transform based methods, and performs well in anti-noise. We finally discussed the limitation of PMCC. © 2011 IEEE.(16 refs)
收录类别	EI
语种	英语
内容类型	会议论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/3429]
专题	深圳先进技术研究院_集成所
作者单位	2011
推荐引用方式 GB/T 7714	Gu xiaoan,Liu jia,Gong xiping. A novel instantaneous phase difference estimator: piecewise maximum cross-correlation function[C]. 见:2011 International Conference on Information and Automation, ICIA 2011. shenzhen.

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