Evaluating CMA Equalization of SOQPSK-TG for Aeronautical Telemetry

Abstract

This paper presents the results of using a constant modulus algorithm (CMA) to recover shaped offset quadrature-phase shift keying (SOQPSK)-TG modulated data, which has been transmitted using the iNET data packet structure. This standard is defined and used for aeronautical telemetry. Based on the iNET-packet structure, the adaptive block processing CMA equalizer can be initialized using the minimum mean square error (MMSE) equalizer. This CMA equalizer is being evaluated for use on iNET structured data, with initial tests being conducted on measured data which has been received in a controlled laboratory environment. Thus the CMA equalizer is applied at the receiver to data packets which have been experimentally generated in order to determine the feasibility of our equalization approach, and its performance is compared to that of the MMSE equalizer. Performance evaluation is based on computed bit error rate (BER) counts for these equalizers.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2015
Accession Number
ADA623708

Entities

People

  • Arlene Cole-rhodes
  • Henry Umuoloa
  • Michael Rice
  • Serge Konedossonguia

Organizations

  • Air Force Test Center

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Algorithms
  • Communication Systems
  • Data Processing
  • Data Sets
  • Environment
  • Equalization
  • Modulation
  • Modulators
  • Phase
  • Phase Modulation
  • Resource Management
  • Simulations
  • Standards
  • Symbols
  • Telemetry
  • Test And Evaluation

Fields of Study

  • Engineering

Readers

  • Radio communications and signal processing.