Volume 5, 2021
|Number of page(s)||14|
|Published online||05 August 2021|
Atmospheric Ray Tracing: An efficient, open-source framework for finding eigenrays in a stratified, moving medium
Institute for Hearing Technology and Acoustics, RWTH Aachen University, Kopernikusstraße 5, 52074 Aachen, Germany
* Corresponding author: email@example.com
Accepted: 12 May 2021
In this paper, an open-source framework for ray tracing in a stratified moving medium is introduced. This framework provides an efficient method to find eigen-rays connecting a source with a receiver and is designed for the purpose of aircraft noise auralization. The method is tested with respect to accuracy and run-time in an aircraft flyover scenario and compared to a state of the art method. The investigation showed that this method provides eigenrays with preset accuracy for source positions most relevant for flyover scenarios and that it is significantly faster than the state of the art method. According to the performance analysis, the presented approach has great potential for integration into future real-time auralizations of aircraft noise.
Key words: Ray Tracing / Stratified / Moving medium / Aircraft noise / Auralization / Open-source
© P. Schäfer & M. Vorländer, Published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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