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

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)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1966
Accession Number
AD0642411

Entities

People

  • Robert A. Gonsalves

Organizations

  • Northeastern University

Tags

DTIC Thesaurus Topics

  • Additives (Chemicals)
  • Delay Lines
  • Detectors
  • Filters
  • Gaussian Noise
  • Intersymbol Interference
  • Matched Filters
  • Noise
  • Probability
  • Stationary

Fields of Study

  • Engineering

Readers

  • Operations Research
  • Radio communications and signal processing.