NDLI: Spectral line tracking for nonstationary random processes

Content Provider	IEEE Xplore Digital Library
Author	Wilkes, D. Hayes III, M.
Copyright Year	1986
Description	Author affiliation: Georgia Institute of Technology, Atlanta, Georgia, USA (Wilkes, D.)
Abstract	The harmonic decomposition of a random process into a sum of sinusoids in white noise is an important problem with applications in a number of different areas. As a result of the work of V.F. Pisarenko, it has been shown that the sinusoidal frequencies and the white noise power are determined by the minimum eigenvalue and the corresponding eigenvector of the autocorrelation matrix. Many authors have formulated adaptive versions of the Pisarenko solution for the purpose of spectral line tracking, but most have concentrated only on stationary sinusoids. In most of the interesting applications, however, the frequencies of the sinusoids change, thus they are nonstationary. In this paper we concentrate on the nonstationary case, and propose a novel fast iterative technique for real-time tracking of the time-varying frequencies. Simulation examples are given which compare the iterative method to other data-adaptive techniques. These examples show that the proposed method converges to good estimates of the frequencies much more quickly than the adaptive techniques as well as being able to perform better in tracking nonstationary sinusoids.
Starting Page	2347
Ending Page	2350
File Size	131269
Page Count	4
File Format	PDF
DOI	10.1109/ICASSP.1986.1168699
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1986-04-07
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Random processes White noise Eigenvalues and eigenfunctions Frequency estimation Symmetric matrices Autocorrelation Acoustic reflection Iterative methods Additive white noise Matrix decomposition
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

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