NDLI: A new class of complex time-frequency distributions for estimating phase synchrony between signals

Content Provider	IEEE Xplore Digital Library
Author	Aviyente, S.
Copyright Year	2009
Description	Author affiliation: Department of Electrical and Computer Engineering, Michigan State University, East Lansing, 48824, USA (Aviyente, S.)
Abstract	Determining the time-varying phase spectrum of non-stationary signals is important for the quantification of the dynamics between signals and has been widely used in detecting synchrony between chaotic oscillators. Current work in quantifying time and frequency dependent phase information relies on either the Hilbert transform or the complex Morlet wavelet transform [1]. Although these methods are effective at extracting the time-varying phase information, they have some drawbacks such as the assumption that the signals are narrowband for the Hilbert transform and the non-uniform timefrequency resolution inherent to the wavelet analysis. In this paper, we propose using a general class of complex distributions belonging to Cohen's class for defining time-varying phase spectrum and phase synchrony. This new class of distributions is defined using the spectrogram decomposition of time-frequency distributions and is shown to have improved performance in detecting phase synchrony compared to existing methods using simulated signals.
Starting Page	561
Ending Page	564
File Size	171598
Page Count	4
File Format	PDF
ISBN	9781424427093
e-ISBN	9781424427116
DOI	10.1109/SSP.2009.5278513
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-31
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Time frequency analysis Phase estimation Frequency synchronization Wavelet transforms Phase detection Chaos Oscillators Frequency dependence Data mining Narrowband Spectrogram Decomposition Time-frequency analysis Phase synchrony
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in