Equalization in Aeronautical Telemetry Using Multiple Antennas

Abstract

This paper introduces a generalized time-reversed space-time block codes (GTR-TRSTBC) as both a conceptual tool to examine the impact of unequal power allocation in equalized single-carrier systems employing two transmit antennas and as a method for exploiting partial channel state information by the transmitter. The generalization involves unequal power allocation parameterized by rho. The criteria for selecting the optimum is minimizing the residual mean-squared error at the MMSE equalizer output. GTR-STBC is applied to measured channel impulse responses and a simple statistical channel model. The results show that 1) the optimum value of gives the best tradeoff between signal-to-noise ratio and ISI; 2) equal power allocation may not be the optimum power allocation when channel state information is available; and 3) the optimum profile of over measured channels is significantly different than from that in statistical channel models.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2014
Accession Number
ADA622042

Entities

People

  • M. S. Afran
  • Michael Rice
  • Mohammad Saquib

Organizations

  • Brigham Young University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Channel State Information
  • Data Sets
  • Detectors
  • Equalization
  • Flight Paths
  • Frequency
  • Ground Stations
  • Low Elevation
  • Modulation
  • Modulators
  • Random Variables
  • Residuals
  • Telemetry
  • Test And Evaluation
  • Transmitters

Fields of Study

  • Engineering

Readers

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

Technology Areas

  • Space