Articles with "passive sonar" as a keyword



Feature Extraction in Fractional Fourier Domain for Classification of Passive Sonar Signals

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Published in 2019 at "Journal of Signal Processing Systems"

DOI: 10.1007/s11265-018-1347-x

Abstract: The acoustic signals radiated from the marine vessels contain information about their machinery characteristics that can be useful for the detection and classification purposes. To achieve reliable accuracy in classification task, informative discriminant features should… read more here.

Keywords: feature extraction; passive sonar; sonar; classification ... See more keywords

A scheme to analyze the influence of ocean sound propagation on passive sonar target classification and recognition

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Published in 2025 at "AIP Advances"

DOI: 10.1063/5.0278896

Abstract: The time-varying, space-varying, and frequency-varying characteristics of the marine environment severely affect the classification and recognition of underwater passive sonar targets. A scheme to analyze the influence of ocean sound propagation on the classification and… read more here.

Keywords: classification; sound propagation; passive sonar; classification recognition ... See more keywords

Hilbert–Huang Transform With Intelligent Noise Reduction for Passive SONAR Signal Processing

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Published in 2025 at "IEEE Journal of Oceanic Engineering"

DOI: 10.1109/joe.2024.3519737

Abstract: Ocean science plays a key role in marine exploration, encouraging the development of new methods for analyzing underwater acoustic waves. In passive SOund NAvigation and Ranging (SONAR) signal processing for military vessel detection and classification,… read more here.

Keywords: signal processing; sonar signal; passive sonar; hht ... See more keywords

Enhanced LOFAR Detection Processing for Passive SONAR

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Published in 2025 at "Defence Science Journal"

DOI: 10.14429/dsj.19858

Abstract: This study surveys methods for improvements in the processing and visualization of Low Frequency Analysis and Recording (LOFAR) in sonar systems. The surveyed method employs a weighted Fast Fourier Transform (FFT) technique to compute LOFAR… read more here.

Keywords: lofar detection; detection processing; passive sonar; processing passive ... See more keywords

Passive Sonar Target Detection Using Statistical Classifier and Adaptive Threshold

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Published in 2018 at "Applied Sciences"

DOI: 10.3390/app8010061

Abstract: This paper presents the results of an experimental investigation about target detecting with passive sonar in Persian Gulf. Detecting propagated sounds in the water is one of the basic challenges of the researchers in sonar… read more here.

Keywords: passive sonar; detection; adaptive threshold; target ... See more keywords

Wake-Responsive AUV Guidance Assisted by Passive Sonar Measurements

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Published in 2024 at "Journal of Marine Science and Engineering"

DOI: 10.3390/jmse12040645

Abstract: To make an Autonomous Underwater Vehicle (AUV) chase a moving target ship that generates wake, wake-responsive guidance can be used. This scenario is applicable to making an underwater torpedo pursue a moving target ship until… read more here.

Keywords: guidance; passive sonar; auv; target ... See more keywords