Modulo-2 Pi Phase Sequence Estimation.

Abstract

The probabilistic evolution of random walk on the circle is studied and the results used to derive a MAP sequence estimator for phase. The sequence estimator is a Viterbi tracker for tracking phase on a finite-dimensional grid in (-Pi, Pi). The algorithm is shown to provide a convenient method for obtaining fixed-lag phase sequence estimates. Performance characteristics are presented and compared with several other nonlinear filtering algorithms. The results indicate superior performance over the range of parameter values usually considered and excellent performance in parameter ranges corresponding to high signal-to-noise ratio and rapidly fluctuating phase. Applications to coherent data communication systems are outlined. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1978
Accession Number
ADA055924

Entities

People

  • C. Johan Masreliez
  • Dennis D. Cox
  • Louis L. Louis L. Scharf

Organizations

  • Colorado State University

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Algorithms
  • Communication Systems
  • Data Transmission
  • Decoding
  • Differential Equations
  • Digital Communications
  • Equations
  • Equations Of State
  • Estimators
  • Filters
  • Filtration
  • Kalman Filters
  • Mathematical Filters
  • Partial Differential Equations
  • Probability
  • Random Variables
  • Random Walk

Fields of Study

  • Engineering

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Approximation Theory.
  • Radio communications and signal processing.