NDLI: Fractionally spaced blind equalization of FIR channels under symbol timing offsets

Content Provider	IEEE Xplore Digital Library
Author	Tugnait, J.K.
Copyright Year	1993
Description	Author affiliation: Dept. of Electr. Eng., Auburn Univ., AL, USA (Tugnait, J.K.)
Abstract	Considers the problem of blind estimation and equalization of digital communication FIR channels using fractionally spaced samples. Fractionally sampled data are cyclostationary rather than stationary. The problem is cast into a mathematical framework of parameter estimation for a vector stationary process with single input (information sequence) and multiple outputs, by using a time-series representation of a cyclostationary process. The channel parameters are estimated by first estimating various subchannels using the second and the fourth order cumulant function of the received data, and then appropriately aligning and scaling them. The estimated channel impulse response is then used to construct a linear equalizer. An illustrative simulation example using a 16-QAM signal is presented where the effect of symbol-timing-phase offset is studied via simulations.
Starting Page	741
Ending Page	745
File Size	428581
Page Count	5
File Format	PDF
ISBN	0818641207
ISSN	10586393
DOI	10.1109/ACSSC.1993.342619
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1993-11-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Blind equalizers Finite impulse response filter Parameter estimation Digital communication
Content Type	Text
Resource Type	Article
Subject	Signal Processing Computer Networks and Communications

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