Particle-Swarm-Optimization-Enhanced Radial-Basis-Function-Kernel-Based Adaptive Filtering Applied to Maritime Data

The real-life signals captured by different measurement systems (such as modern maritime transport characterized by challenging and varying operating conditions) are often subject to various types of noise and other external factors in the data collection and transmission processes. Therefore, the f...

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Published inJournal of Marine Science and Engineering Vol. 9; no. 4; p. 439
Main Authors Lopac, Nikola, Jurdana, Irena, Lerga, Jonatan, Wakabayashi, Nobukazu
Format Journal Article
LanguageEnglish
Japanese
Published Basel MDPI AG 18.04.2021
Subjects
Online AccessGet full text
ISSN2077-1312
2077-1312
DOI10.3390/jmse9040439

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Abstract The real-life signals captured by different measurement systems (such as modern maritime transport characterized by challenging and varying operating conditions) are often subject to various types of noise and other external factors in the data collection and transmission processes. Therefore, the filtering algorithms are required to reduce the noise level in measured signals, thus enabling more efficient extraction of useful information. This paper proposes a locally-adaptive filtering algorithm based on the radial basis function (RBF) kernel smoother with variable width. The kernel width is calculated using the asymmetrical combined-window relative intersection of confidence intervals (RICI) algorithm, whose parameters are adjusted by applying the particle swarm optimization (PSO) based procedure. The proposed RBF-RICI algorithm’s filtering performances are analyzed on several simulated, synthetic noisy signals, showing its efficiency in noise suppression and filtering error reduction. Moreover, compared to the competing filtering algorithms, the proposed algorithm provides better or competitive filtering performance in most considered test cases. Finally, the proposed algorithm is applied to the noisy measured maritime data, proving to be a possible solution for a successful practical application in data filtering in maritime transport and other sectors.
AbstractList The real-life signals captured by different measurement systems (such as modern maritime transport characterized by challenging and varying operating conditions) are often subject to various types of noise and other external factors in the data collection and transmission processes. Therefore, the filtering algorithms are required to reduce the noise level in measured signals, thus enabling more efficient extraction of useful information. This paper proposes a locally-adaptive filtering algorithm based on the radial basis function (RBF) kernel smoother with variable width. The kernel width is calculated using the asymmetrical combined-window relative intersection of confidence intervals (RICI) algorithm, whose parameters are adjusted by applying the particle swarm optimization (PSO) based procedure. The proposed RBF-RICI algorithm’s filtering performances are analyzed on several simulated, synthetic noisy signals, showing its efficiency in noise suppression and filtering error reduction. Moreover, compared to the competing filtering algorithms, the proposed algorithm provides better or competitive filtering performance in most considered test cases. Finally, the proposed algorithm is applied to the noisy measured maritime data, proving to be a possible solution for a successful practical application in data filtering in maritime transport and other sectors.
Author Irena Jurdana
Nobukazu Wakabayashi
Nikola Lopac
Jonatan Lerga
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  fullname: Wakabayashi, Nobukazu
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Snippet The real-life signals captured by different measurement systems (such as modern maritime transport characterized by challenging and varying operating...
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StartPage 439
SubjectTerms Adaptive algorithms
adaptive filtering
adaptive filtering ; radial basis function ; variable-width kernel smoother ; particle swarm optimization ; maritime transport ; signal processing
Adaptive filters
Algorithms
Bias
Confidence intervals
Data collection
Error reduction
GC1-1581
Kernels
Marine transportation
maritime transport
Mathematical analysis
Methods
Naval architecture. Shipbuilding. Marine engineering
Noise
Noise levels
Noise reduction
Oceanography
Optimization
Particle swarm optimization
Radial basis function
Signal processing
Transport
variable-width kernel smoother
VM1-989
Width
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Title Particle-Swarm-Optimization-Enhanced Radial-Basis-Function-Kernel-Based Adaptive Filtering Applied to Maritime Data
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