Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/5385
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dc.contributorDepartment of Electronic and Information Engineering-
dc.creatorSun, J-
dc.creatorSmall, M-
dc.date.accessioned2014-12-11T08:25:41Z-
dc.date.available2014-12-11T08:25:41Z-
dc.identifier.issn1539-3755-
dc.identifier.urihttp://hdl.handle.net/10397/5385-
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.rightsPhysical Review E © 2009 The American Physical Society. The Journal's web site is located at http://pre.aps.org/en_US
dc.subjectNormal distributionen_US
dc.subjectSynchronisationen_US
dc.subjectTime seriesen_US
dc.titleUnified framework for detecting phase synchronization in coupled time seriesen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage1-
dc.identifier.epage11-
dc.identifier.volume80-
dc.identifier.issue4-
dc.identifier.doi10.1103/PhysRevE.80.046219-
dcterms.abstractPhase synchronization (PS) has drawn increasing attention in recent years for its extensive applications in analyzing time series observed from coupled systems. In this paper, we examine the detection of PS in bivariate time series from the viewpoints of signal processing and circular statistics. Several definitions of instantaneous phase (IP) are first revisited and further unified into a framework, which defines IP as the argument of the signal with a specific bandpass filter applied. With this framework, the constraints for IP definition are discussed and the effect of noise in IP estimation is studied. The estimate error of IP, which is due to noise, is shown to obey a scale mixture of normal (SMN) distributions. Further, under the assumption that the SMN of IP error can be approximated by a particular normal distribution, the estimate of mean phase coherence of bivariate time series is shown to be degraded by a factor, which is determined by only the level of in-band noise. Finally, simulations are provided to support the theoretical results.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationPhysical review. E, Statistical, nonlinear, and soft matter physics, Oct. 2009, v. 80, no. 4, 046219, p. 1-11-
dcterms.isPartOfPhysical review. E, Statistical, nonlinear, and soft matter physics-
dcterms.issued2009-10-
dc.identifier.isiWOS:000271350700050-
dc.identifier.scopus2-s2.0-70449085104-
dc.identifier.eissn1550-2376-
dc.identifier.rosgroupidr49645-
dc.description.ros2009-2010 > Academic research: refereed > Publication in refereed journal-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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