Universal Criteria for Blind Deconvolution

Abstract

We present necessary and sufficient conditions for blind equalization/deconvolution (without observing the input) of an unknown, possible non-minimum phase linear time invariant system (channel). Based on that, we propose a family of optimization criteria and prove that their solution correspond to the desired response. These criteria, and the associated gradient-search algorithms, involve the computation of high order cumulants. The proposed criteria are universal in the sense that they do not impose any restrictions on the probability distribution of the input symbols. We also address the problem of additive noise in the system and show that in several important cases, e.g. when the additive noise is Gaussian, the proposed criteria are unaffected.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1990
Accession Number
ADA220853

Entities

People

  • Ehud Weinstein
  • Ofir Shalvi

Organizations

  • Woods Hole Oceanographic Institution

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Additives (Chemicals)
  • Algorithms
  • Convergence
  • Delay Lines
  • Digital Communications
  • Equalization
  • Gaussian Noise
  • Iterations
  • Military Research
  • Noise
  • Oceanography
  • Phase Shift
  • Probability
  • Probability Distributions
  • Random Variables
  • United States
  • Universities

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Control Systems Engineering.