NDLI: Secondary information from filter bank may not yield higher resolution of line

Content Provider	IEEE Xplore Digital Library
Author	Estimation, S. Guifeng Liu DeBrunner, V.
Copyright Year	2012
Description	Author affiliation: Department of Electrical and Computer Engineering, Florida State University, Tallahassee, 32310, USA (Estimation, S.; Guifeng Liu; DeBrunner, V.)
Abstract	The entropy based Hirschman optimal transform (HOT) is superior to the energy based discrete Fourier transform (DFT) in terms of its ability to separate or resolve two limiting cases of localization in frequency, viz pure tones and additive white noise. In this paper, we implement a stationary line spectral estimation method using filter banks, which are constructed with the HOT and the DFT. We combine these filter banks with the classic interpolating procedure developed by Barry Quinn to develop our line estimation algorithm. We call the resulting algorithm the smoothed HOT-DFT line periodogram. We compare its performance (in terms of frequency resolution) to Quinn's smoothed periodogram. In particular, we compare the performance of the HOT-DFT with that of the DFT in resolving two close frequency components in additive white Gaussian noise (AWGN). We find the HOT-DFT to be superior to the DFT in frequency estimation, and ascribe the difference to the HOT's relationship to entropy. It is well-known that the frequency estimation (i.e. the secondary inference that is desired from the signal model) is highly related with the modeling performance. In fact, we will show that while the residual energy is lower for the DFT filter bank, the frequency estimation error might be higher.
Starting Page	431
Ending Page	435
File Size	929155
Page Count	5
File Format	PDF
ISBN	9781467350501
ISSN	10586393
e-ISBN	9781467350518
DOI	10.1109/ACSSC.2012.6489040
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Quinn's method Hirschman Optimal Transform Discrete Fourier Transform Filter Bank Periodogram
Content Type	Text
Resource Type	Article
Subject	Signal Processing Computer Networks and Communications

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
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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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