Estimation of range‐dependent sound‐speed profile with dictionary learning method

Kuo, Yu-Hsin; Kiang, Jean‐Fu

doi:10.1049/iet-rsn.2019.0107

IET Radar, Sonar & Navigation

2020

DOI: 10.1049/iet-rsn.2019.0107

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Estimation of range‐dependent sound‐speed profile with dictionary learning method

Yu-Hsin Kuo

Jean‐Fu Kiang

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2022

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A New Compression and Storage Method for High-Resolution SSP Data Based-on Dictionary Learning

Yan¹,

Wang²,

Xiao³

2022

JMSE

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The sound speed profile data of seawater provide an important basis for carrying out underwater acoustic modeling and analysis, sonar performance evaluation, and underwater acoustic assistant decision-making. The data volume of the high-resolution sound speed profile is vast, and the demand for data storage space is high, which severely limits the analysis and application of the high-resolution sound speed profile data in the field of marine acoustics. This paper uses the dictionary learning method to achieve sparse coding of the high-resolution sound speed profile and uses a compressed sparse row method to compress and store the sparse characteristics of the data matrix. The influence of related parameters on the compression rate and recovery data error is analyzed and discussed, as are different scenarios and the difference in compression processing methods. Through comparative experiments, the average error of the sound speed profile data compressed is less than 0.5 m/s, the maximum error is less than 3 m/s, and the data volume is about 10% to 15% of the original data volume. This method significantly reduces the storage capacity of high-resolution sound speed profile data and ensures the accuracy of the data, providing technical support for efficient and convenient access to high-resolution sound speed profiles.

show abstract

A New Compression and Storage Method for High-Resolution SSP Data Based-on Dictionary Learning

Yan¹,

Wang²,

Xiao³

2022

JMSE

View full text Add to dashboard Cite

show abstract

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Estimation of range‐dependent sound‐speed profile with dictionary learning method

Cited by 1 publication

References 22 publications

A New Compression and Storage Method for High-Resolution SSP Data Based-on Dictionary Learning

A New Compression and Storage Method for High-Resolution SSP Data Based-on Dictionary Learning

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