Accession Number:

ADA210852

Title:

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

Descriptive Note:

Technical note Apr 1988-May 1989

Corporate Author:

CTA INC MCLEAN VA

Personal Author(s):

• Child, Joseph
• Cleve, Robert
• Grable, Mark

Report Date:

1989-05-01

Pagination or Media Count:

47.0

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 coderdecoders CODECS that are being considered for the use in supporting the Federal Aviation Administrations FAAs 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.

Descriptors:

• *CODERS
• *DECODERS
• *SATELLITE COMMUNICATIONS
• *ARTIFICIAL SATELLITES
• *AIR TRAFFIC CONTROL SYSTEMS
• AIR TRAFFIC
• LOW RATE
• TEST FACILITIES
• CHANNELS
• BACKGROUND NOISE
• VOICE COMMUNICATIONS
• DATA RATE
• NOISE
• DATA COMPRESSION
• TEST BEDS
• TEST AND EVALUATION
• SIMULATION

Subject Categories:

• Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE