A New Approach to Multipath Mitigation in Aeronautical Telemetry

Abstract

This paper compares the bit error rate performance of a single channel equalizer with the bit error rate performance of a multi-channel equalizer (in the form of the time-reversed space-time block code) using channels derived from multipath channel measurements at Edwards AFB, California, and Cairns Army Airfield, Ft. Rucker, Alabama. The results show that the performance of the multi-channel equalizer is better than the single channel equalizer over the weaker channel, but worse than the performance of the single channel equalizer over the stronger channel. We conclude that the best approach for the informed transmitter is to apply all available power to a single antenna, whereas the best approach for the uninformed transmitter is to apply equal power with transmit diversity to the two available antennas.

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Document Details

Document Type
Technical Report
Publication Date
Jun 23, 2011
Accession Number
ADA549228

Entities

People

  • Gayatri Narumanchi
  • Michael Rice
  • Mohammad Saquib

Organizations

  • Brigham Young University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Altitude
  • Bandwidth
  • Frequency
  • Frequency Domain
  • Landing Fields
  • Low Elevation
  • Low Pass Filters
  • Multipath Channels
  • Multipath Transmission
  • Multiple Access
  • Simulations
  • Telemetry
  • Test And Evaluation
  • Transmitters
  • United States

Fields of Study

  • Engineering

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Microwave Engineering.
  • Wave Propagation and Nonlinear Chaotic Dynamics.

Technology Areas

  • Space