Evaluation of Low Data Rate Voice CODECS (Coder/Decoders) for Air Traffic Control Applications

Abstract

This report describes the test objectives, methodologies, and results of prequalification testing and evaluation of various 4.8 and 2.4 kilo bit per second (kbps) compression rate voice coder/decoders (CODECS) that are being considered for the use in supporting the Federal Aviation Administration's (FAA's) satellite communications technology demonstration program. The principal objectives of this program are to evaluate the performance of these CODECS for potential air traffic applications and to develop CODEC testing procedures tailored to the specific needs of air traffic control (ATC) communications. This report concludes with a description of the relative performance and ranking of the CODECS tested. This information has led to the selection of a quantity of 4. 8 and 2.4 kbps CODECS for more comprehensive testing under simulated background noise and satellite channel noise conditions in the CODEC Test Bed Facility. Keywords: Voice communication; Satellite communications.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1989
Accession Number
ADA210852

Entities

People

  • Joseph Child
  • Mark Grable
  • Robert Cleve

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Acceptability
  • Air Traffic
  • Air Traffic Controllers
  • Algorithms
  • Artificial Satellites
  • Background Noise
  • Data Rate
  • Environment
  • New York
  • Satellite Communications
  • Standards
  • Test And Evaluation
  • Test Beds
  • Transportation
  • United States
  • United States Government
  • Voice Communications

Fields of Study

  • Engineering

Readers

  • Aviation Safety and Air Traffic Management
  • Radio communications and signal processing.
  • Software Engineering

Technology Areas

  • Space