Accession Number : AD0642411

Title :   IMPLEMENTATION AND PERFORMANCE OF THE MAXIMUM-LIKELIHOOD DETECTOR IN A CHANNEL WITH INTERSYMBOL INTERFERENCE,

Corporate Author : NORTHEASTERN UNIV BOSTON MASS

Personal Author(s) : Gonsalves,Robert A.

Report Date : AUG 1966

Pagination or Media Count : 40

Abstract : It is shown that the maximum-likelihood (ML) detector for noisy, binary channel with restricted intersymbol interference (ISI) consists of a matched filter followed by a tapped delay line. The useful output is a nonlinear function of the tap outputs. Bounds on the per-symbol probability of error indicate that a gross approximation to the ML detector performs as well as an optimum linear detector. The major assumptions are (1) bi-polar binary signals, (2) ISI only between adjacent bauds, (3) stationary additive white, Gaussian noise, and (4) perfect synchronization. Extensions are suggested to remove assumptions (1) and (2) and to handle stationary, non-white Gaussian noise. (Author)

Descriptors :   (*DETECTORS, *DATA TRANSMISSION SYSTEMS), INFORMATION THEORY, DATA STORAGE SYSTEMS, DECISION THEORY

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE