Using global optimization methods for three-dimensional localization and quantification of incoherent acoustic sources
Bieke von den von den Hoff (TU Delft - Aircraft Noise and Climate Effects)
R. Merino-Martínez (TU Delft - Aircraft Noise and Climate Effects)
Dick Simons (TU Delft - Aircraft Noise and Climate Effects)
Mirjam Snellen (TU Delft - Aircraft Noise and Climate Effects)
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Abstract
Complex acoustic systems typically present three-dimensional distributions of noise sources. Conventional acoustic imaging methods with planar microphone arrays are unsuitable for three-dimensional acoustic imaging, given the computational demands and the incapability to explicitly account for the presence of multiple sources. This paper proposes the use of global optimization methods to solve these shortcomings. An experiment with three incoherent speakers proved that this method can accurately determine the three-dimensional location and the respective sound level of each individual source. In addition, super-resolution is achieved beyond half the Rayleigh resolution limit. VC 2022 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
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