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A Novel Underwater Location Beacon Signal Detection Method Based on Mixing and Normalizing Stochastic Resonance
A flight data recorder (FDR) is an electronic recording device placed in an aircraft for the purpose of facilitating the investigation of aviation accidents. If an aircraft crashes into water, an underwater locator beacon (ULB), which is installed on the FDR, is triggered by water immersion, and emi...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7085629/ https://www.ncbi.nlm.nih.gov/pubmed/32120939 http://dx.doi.org/10.3390/s20051292 |
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author | Liang, Guolong Wan, Guangming Wang, Jinjin Wang, Xue |
author_facet | Liang, Guolong Wan, Guangming Wang, Jinjin Wang, Xue |
author_sort | Liang, Guolong |
collection | PubMed |
description | A flight data recorder (FDR) is an electronic recording device placed in an aircraft for the purpose of facilitating the investigation of aviation accidents. If an aircraft crashes into water, an underwater locator beacon (ULB), which is installed on the FDR, is triggered by water immersion, and emits an ultrasonic 10 ms pulse signal once per second at 37.5 kHz. This pulse signal can be detected by sonar equipment. However, the ULB signal only can be detectable 1–2 kilometers from the surface in normal conditions. Stochastic resonance (SR) is a rising theory in the field of weak signal detection. The classical stochastic resonance limits state that the input must be small-parameter and the sampling frequency must be 50 times higher than the signal frequency. It cannot be applied to the ULB signal detection. To resolve this problem, this paper presents a novel approach named mixing and normalizing stochastic resonance (MNSR). By mixing the ULB signal and normalizing SR system parameters, MNSR provides a new way to detect weak ULB signal. Meanwhile, we propose the parameters adjustment method of MNSR. We prove the effectiveness through numerical simulation. An experiment in a tank is employed to verify the practicability of this method. |
format | Online Article Text |
id | pubmed-7085629 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-70856292020-04-21 A Novel Underwater Location Beacon Signal Detection Method Based on Mixing and Normalizing Stochastic Resonance Liang, Guolong Wan, Guangming Wang, Jinjin Wang, Xue Sensors (Basel) Article A flight data recorder (FDR) is an electronic recording device placed in an aircraft for the purpose of facilitating the investigation of aviation accidents. If an aircraft crashes into water, an underwater locator beacon (ULB), which is installed on the FDR, is triggered by water immersion, and emits an ultrasonic 10 ms pulse signal once per second at 37.5 kHz. This pulse signal can be detected by sonar equipment. However, the ULB signal only can be detectable 1–2 kilometers from the surface in normal conditions. Stochastic resonance (SR) is a rising theory in the field of weak signal detection. The classical stochastic resonance limits state that the input must be small-parameter and the sampling frequency must be 50 times higher than the signal frequency. It cannot be applied to the ULB signal detection. To resolve this problem, this paper presents a novel approach named mixing and normalizing stochastic resonance (MNSR). By mixing the ULB signal and normalizing SR system parameters, MNSR provides a new way to detect weak ULB signal. Meanwhile, we propose the parameters adjustment method of MNSR. We prove the effectiveness through numerical simulation. An experiment in a tank is employed to verify the practicability of this method. MDPI 2020-02-27 /pmc/articles/PMC7085629/ /pubmed/32120939 http://dx.doi.org/10.3390/s20051292 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Liang, Guolong Wan, Guangming Wang, Jinjin Wang, Xue A Novel Underwater Location Beacon Signal Detection Method Based on Mixing and Normalizing Stochastic Resonance |
title | A Novel Underwater Location Beacon Signal Detection Method Based on Mixing and Normalizing Stochastic Resonance |
title_full | A Novel Underwater Location Beacon Signal Detection Method Based on Mixing and Normalizing Stochastic Resonance |
title_fullStr | A Novel Underwater Location Beacon Signal Detection Method Based on Mixing and Normalizing Stochastic Resonance |
title_full_unstemmed | A Novel Underwater Location Beacon Signal Detection Method Based on Mixing and Normalizing Stochastic Resonance |
title_short | A Novel Underwater Location Beacon Signal Detection Method Based on Mixing and Normalizing Stochastic Resonance |
title_sort | novel underwater location beacon signal detection method based on mixing and normalizing stochastic resonance |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7085629/ https://www.ncbi.nlm.nih.gov/pubmed/32120939 http://dx.doi.org/10.3390/s20051292 |
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