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Multipath Propagation of Acoustic Signal in a Swimming Pool—Source Localization Problem †
This paper explores the problem of severe multipath propagation of underwater acoustic signals in a swimming pool. The problem appeared in a study that examined a system used to signal emergency situations (i.e., pre-drowning symptoms detected by a wearable device on a pool user’s wrist) and locate...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8840367/ https://www.ncbi.nlm.nih.gov/pubmed/35161910 http://dx.doi.org/10.3390/s22031162 |
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author | Misiurewicz, Jacek Bruliński, Konrad Klembowski, Wiesław Kulpa, Krzysztof Stefan Pietrusiewicz, Jan |
author_facet | Misiurewicz, Jacek Bruliński, Konrad Klembowski, Wiesław Kulpa, Krzysztof Stefan Pietrusiewicz, Jan |
author_sort | Misiurewicz, Jacek |
collection | PubMed |
description | This paper explores the problem of severe multipath propagation of underwater acoustic signals in a swimming pool. The problem appeared in a study that examined a system used to signal emergency situations (i.e., pre-drowning symptoms detected by a wearable device on a pool user’s wrist) and locate the signal source. A swimming pool acoustic environment is characterized by the presence of large flat reflecting planes surrounding a small volume of water. The reflections are numerous and much stronger than in typical hydroacoustic applications. In this paper, we attempted to create a model of the swimming pool response, one that is suitable for simulation experiments with detection and localization of emergency signals. Then, we explore the possible remedies for the localization system, applied on the transmit side (waveform design) and on the receive side (receiver placement and signal processing). Finally, we present an algorithm for object localization, considering the possible reflections with a multi-hypothesis approach. |
format | Online Article Text |
id | pubmed-8840367 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-88403672022-02-13 Multipath Propagation of Acoustic Signal in a Swimming Pool—Source Localization Problem † Misiurewicz, Jacek Bruliński, Konrad Klembowski, Wiesław Kulpa, Krzysztof Stefan Pietrusiewicz, Jan Sensors (Basel) Article This paper explores the problem of severe multipath propagation of underwater acoustic signals in a swimming pool. The problem appeared in a study that examined a system used to signal emergency situations (i.e., pre-drowning symptoms detected by a wearable device on a pool user’s wrist) and locate the signal source. A swimming pool acoustic environment is characterized by the presence of large flat reflecting planes surrounding a small volume of water. The reflections are numerous and much stronger than in typical hydroacoustic applications. In this paper, we attempted to create a model of the swimming pool response, one that is suitable for simulation experiments with detection and localization of emergency signals. Then, we explore the possible remedies for the localization system, applied on the transmit side (waveform design) and on the receive side (receiver placement and signal processing). Finally, we present an algorithm for object localization, considering the possible reflections with a multi-hypothesis approach. MDPI 2022-02-03 /pmc/articles/PMC8840367/ /pubmed/35161910 http://dx.doi.org/10.3390/s22031162 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Misiurewicz, Jacek Bruliński, Konrad Klembowski, Wiesław Kulpa, Krzysztof Stefan Pietrusiewicz, Jan Multipath Propagation of Acoustic Signal in a Swimming Pool—Source Localization Problem † |
title | Multipath Propagation of Acoustic Signal in a Swimming Pool—Source Localization Problem † |
title_full | Multipath Propagation of Acoustic Signal in a Swimming Pool—Source Localization Problem † |
title_fullStr | Multipath Propagation of Acoustic Signal in a Swimming Pool—Source Localization Problem † |
title_full_unstemmed | Multipath Propagation of Acoustic Signal in a Swimming Pool—Source Localization Problem † |
title_short | Multipath Propagation of Acoustic Signal in a Swimming Pool—Source Localization Problem † |
title_sort | multipath propagation of acoustic signal in a swimming pool—source localization problem † |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8840367/ https://www.ncbi.nlm.nih.gov/pubmed/35161910 http://dx.doi.org/10.3390/s22031162 |
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