NDLI: Semiblind BLUE Channel Estimation With Applications to Digital Television

Content Provider	IEEE Xplore Digital Library
Author	Pladdy, C. OzenOzen, S. Nerayanuru, S.M. Zoltowski, M. Fimoff, M.
Copyright Year	1967
Abstract	A semiblind iterative algorithm to construct the best linear unbiased estimate (BLUE) of the channel impulse response (CIR) vector h for communication systems that utilize a periodically transmitted training sequence within a continuous stream of information symbols is devised. The BLUE CIR estimate for the general linear model y=Ah+w, where w is the correlated noise, is given by the Gauss-Markoff theorem. The covariance matrix of the correlated noise, which is denoted by C(h), is a function of the channel that is to be identified. Consequently, an iteration is used to give successive approximations h^(k),k=0,1,2,... to h_BLUE, where h⁽⁰⁾ is an initial approximation given by the correlation processing, which exists at the receiver for the purpose of frame synchronization. A function F(h) for which h_BLUE is a fixed point is defined. Conditions under which h_BLUE is the unique fixed point and for which the iteration proposed in the algorithm converges to the unique fixed point h_BLUE are given. The proofs of these results follow broadly along the lines of Banach fixed-point theorems
Sponsorship	IEEE Vehicular Technology Society
Starting Page	1812
Ending Page	1823
Page Count	12
File Size	399402
File Format	PDF
ISSN	00189545
Volume Number	55
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Channel estimation Digital TV Research and development Iterative algorithms Communication systems Statistics Signal processing algorithms Image converters Signal mapping Vectors semiblind channel estimation Banach fixed-point theorem equalization fixed point iterations Gauss–Markoff theorem
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Automotive Engineering Computer Networks and Communications Electrical and Electronic Engineering Aerospace Engineering

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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
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