Deep Learning Models for Passive Sonar Signal Classification of Military Data

The noise radiated from ships can be used for their identification and classification using passive sonar systems. Several techniques have been proposed for military ship classification based on acoustic signatures, which can be acquired through controlled experiments performed in an acoustic lane....

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Main Authors: Júlio de Castro Vargas Fernandes, Natanael Nunes de Moura Junior, José Manoel de Seixas
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Remote Sensing
Subjects:
Online Access:https://www.mdpi.com/2072-4292/14/11/2648
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author Júlio de Castro Vargas Fernandes
Natanael Nunes de Moura Junior
José Manoel de Seixas
author_facet Júlio de Castro Vargas Fernandes
Natanael Nunes de Moura Junior
José Manoel de Seixas
author_sort Júlio de Castro Vargas Fernandes
collection DOAJ
description The noise radiated from ships can be used for their identification and classification using passive sonar systems. Several techniques have been proposed for military ship classification based on acoustic signatures, which can be acquired through controlled experiments performed in an acoustic lane. The cost for such data acquisition is a significant issue since the ship and crew have to be dislocated from the fleet. In addition, the experiments have to be repeated for different operational conditions, taking a considerable amount of time. Even with this massive effort, the scarce amount of data produced by these controlled experiments may limit further detailed analyses. In this paper, deep learning models are used for full exploitation of such acquired data, envisaging passive sonar signal classification. A drawback of such models is the large number of parameters, which requires extensive data volumes for parameter tuning along the training phase. Thus, generative adversarial networks (GANs) are used to synthesize data so that a larger data volume can be produced for training convolutional neural networks (CNNs), which are used for the classification task. Different GAN design approaches were evaluated and both maximum probability and class-expert strategies were exploited for signal classification. Special attention was paid to how the expert knowledge might give a handle on analyzing the performance of the various deep learning models through tests that mirrored actual deployment. An accuracy as high as <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>99.0</mn><mo>±</mo><mn>0.4</mn><mo>%</mo></mrow></semantics></math></inline-formula> was achieved using experimental data, which improves upon previous machine learning designs in the field.
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spelling doaj.art-90811f900bb747329de61438179daa632023-11-23T14:45:08ZengMDPI AGRemote Sensing2072-42922022-06-011411264810.3390/rs14112648Deep Learning Models for Passive Sonar Signal Classification of Military DataJúlio de Castro Vargas Fernandes0Natanael Nunes de Moura Junior1José Manoel de Seixas2Signal Processing Lab, COPPE/POLI, Technology Center, Federal University of Rio de Janeiro (UFRJ), Av. Horácio Macedo 2030, Rio de Janeiro 21941-914, BrazilSignal Processing Lab, COPPE/POLI, Technology Center, Federal University of Rio de Janeiro (UFRJ), Av. Horácio Macedo 2030, Rio de Janeiro 21941-914, BrazilSignal Processing Lab, COPPE/POLI, Technology Center, Federal University of Rio de Janeiro (UFRJ), Av. Horácio Macedo 2030, Rio de Janeiro 21941-914, BrazilThe noise radiated from ships can be used for their identification and classification using passive sonar systems. Several techniques have been proposed for military ship classification based on acoustic signatures, which can be acquired through controlled experiments performed in an acoustic lane. The cost for such data acquisition is a significant issue since the ship and crew have to be dislocated from the fleet. In addition, the experiments have to be repeated for different operational conditions, taking a considerable amount of time. Even with this massive effort, the scarce amount of data produced by these controlled experiments may limit further detailed analyses. In this paper, deep learning models are used for full exploitation of such acquired data, envisaging passive sonar signal classification. A drawback of such models is the large number of parameters, which requires extensive data volumes for parameter tuning along the training phase. Thus, generative adversarial networks (GANs) are used to synthesize data so that a larger data volume can be produced for training convolutional neural networks (CNNs), which are used for the classification task. Different GAN design approaches were evaluated and both maximum probability and class-expert strategies were exploited for signal classification. Special attention was paid to how the expert knowledge might give a handle on analyzing the performance of the various deep learning models through tests that mirrored actual deployment. An accuracy as high as <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>99.0</mn><mo>±</mo><mn>0.4</mn><mo>%</mo></mrow></semantics></math></inline-formula> was achieved using experimental data, which improves upon previous machine learning designs in the field.https://www.mdpi.com/2072-4292/14/11/2648passive sonar systemLOFAR analysisdeep learningconvolutional neural networksgenerative adversarial networksquadrant analysis
spellingShingle Júlio de Castro Vargas Fernandes
Natanael Nunes de Moura Junior
José Manoel de Seixas
Deep Learning Models for Passive Sonar Signal Classification of Military Data
Remote Sensing
passive sonar system
LOFAR analysis
deep learning
convolutional neural networks
generative adversarial networks
quadrant analysis
title Deep Learning Models for Passive Sonar Signal Classification of Military Data
title_full Deep Learning Models for Passive Sonar Signal Classification of Military Data
title_fullStr Deep Learning Models for Passive Sonar Signal Classification of Military Data
title_full_unstemmed Deep Learning Models for Passive Sonar Signal Classification of Military Data
title_short Deep Learning Models for Passive Sonar Signal Classification of Military Data
title_sort deep learning models for passive sonar signal classification of military data
topic passive sonar system
LOFAR analysis
deep learning
convolutional neural networks
generative adversarial networks
quadrant analysis
url https://www.mdpi.com/2072-4292/14/11/2648
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