Comparison of Channel Estimation Techniques.

Abstract

This thesis involved the comparison of three types of channel estimation techniques, the Feedforward Estimator, the Feedback Estimator, and the Lattice Estimator. A computer simulation of a communications channel was run involving varying levels of amplitude distortion, phase distortion, and Gaussian noise imposed on a data stream. The resulting output of the channel was fed to a receiver consisting of a detector and a channel estimator. The estimator took the output of the channel and the detector and used them to identify the impulse response of the channel. Of the three channel estimators, the Feedback Estimator proved superior in terms of performance under varying levels of channel distortion and noise. Furthermore, the Feedback Estimator demonstrated the best error handling capabilities. Finally, the Feedback Estimator proved to be the simplest algorithm to implement of the three. Keywords: electrical engineering.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1986
Accession Number
ADA177702

Entities

People

  • Ralph M. Strother

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Air Force
  • Algorithms
  • Amplitude
  • Capillary Electrophoresis
  • Channel Estimation
  • Communication Systems
  • Computer Simulations
  • Detectors
  • Distortion
  • Electrical Engineering
  • Engineering
  • Estimators
  • Gaussian Noise
  • Noise
  • Phase
  • Phase Distortion
  • Security

Fields of Study

  • Engineering

Readers

  • Radio communications and signal processing.
  • Statistical inference.