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Audio degradation of climax mode transmission in air traffic control

Published online by Cambridge University Press:  30 May 2024

H. Vignoli Muniz Open the ORCID record for H. Vignoli Muniz [Opens in a new window]  and
E. Parente Ribeiro Open the ORCID record for E. Parente Ribeiro [Opens in a new window]
H. Vignoli Muniz*
Affiliation:
Department of Electrical Engineering, Federal University of Parana, Curitiba, PR, Brazil
E. Parente Ribeiro
Affiliation:
Department of Electrical Engineering, Federal University of Parana, Curitiba, PR, Brazil
*
Corresponding author: H. Vignoli Muniz; Email: hildovig@hotmail.com
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Abstract

Airspace control plays an important role in the safety and fluidity of air traffic. A fundamental service for this purpose is audio communication through frequencies in the VHF bands. This paper describes the evaluation of the audio degradation of voice transmissions from control centre to the aircraft. The effects of more than one station broadcasting on the same frequency with carrier offset (climax mode) are analysed using perceptual evaluation of speech quality (PESQ) perceptual model. Comparative studies are performed to verify the degree of degradation of different audio transport systems and climax situation.

Keywords

climaxaudio qualityPESQair traffic controlaeronautical mobile service
Type
Research Article
Information
The Aeronautical Journal , First View , pp. 1 - 12
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Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of Royal Aeronautical Society

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