NDLI: High resolution frequency tracking via non-negative time-frequency distributions

Content Provider	IEEE Xplore Digital Library
Author	Nickel, R.M. Williams, W.J.
Copyright Year	2000
Description	Author affiliation: Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA (Nickel, R.M.)
Abstract	A new method for frequency tracking is presented. It combines high resolution time-frequency analysis with the discriminative power of a multiple signal classification (MUSIC, see Schmidt, 1981) technique. The proposed time-varying frequency estimator employs a signal adaptive time-frequency distribution (TFD) with suppressed interference terms. The adaptive TFD is able to resolve components that are closely spaced in time and frequency. The achieved resolution is superior to the one achieved by sliding window techniques which are hampered in joint time-frequency resolution by the uncertainty principle. Simulations show that the presented approach operates reliably in low signal-to-noise ratio environments. The proposed method improves and generalizes the method proposed by Amin and Williams (see IEEE Trans. Signal Proc., vol.46, no.10, pp.2796-2804, Oct. 1998).
Starting Page	612
Ending Page	615
File Size	377204
Page Count	4
File Format	PDF
ISBN	0780359887
DOI	10.1109/SSAP.2000.870198
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-08-16
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Time frequency analysis Frequency estimation Signal resolution Autocorrelation Multiple signal classification Gaussian noise Chirp Maximum likelihood estimation Smoothing methods Signal processing
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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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
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