Dictionary learning of sound speed profiles
WebJan 6, 2024 · PDF Tools Share Abstract A range-dependent dictionary learning method is proposed to retrieve the sound-speed profile (SSP) in a water body, with the whole computational domain decomposed into multiple range-independent subdomains. A dictionary is constructed by using the World Ocean Atlas depth profiles of temperature … WebFeb 1, 2024 · In particular, two kinds of SSP uncertainties are considered: measurement errors, which generally exist in the form of Gaussian noises; and the disturbances/anomalies caused by potential ocean...
Dictionary learning of sound speed profiles
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WebFeb 1, 2024 · A range‐dependent dictionary learning method is proposed to retrieve the sound‐speed profile (SSP) in a water body, with the whole computational domain decomposed into multiple... WebDictionary learning of sound speed profiles Michael Biancoa) and Peter Gerstoft Scripps Institution of Oceanography, University of California San Diego, La Jolla, …
WebSep 1, 2024 · In this paper, we mainly focus on the complete dictionary and propose a low-frequency underwater acoustic signal denoising method based on dictionary learning. We use the training dictionary rather than the fixed dictionary to represent the signal sparsely, without prior information on the signal. WebOct 17, 2024 · Download Citation On Oct 17, 2024, Sijia Sun and others published Sparse Representation of Sound Speed Profiles Based on Dictionary Learning Find, read and cite all the research you need on ...
WebApr 1, 2015 · The method is illustrated with simulation and then verified using acoustic data from a 2009 experiment for which AIS information was retrieved from the Unites States Coast Guard Navigation Center... WebMay 1, 2024 · Theoretically, the Super-Resolution (SR) reconstruction scheme is a method which is performed by many applications nowadays for the purpose of generating a High-Resolution (HR) image using the...
WebSep 15, 2016 · In this paper, it is shown that dictionary learning, a form of unsupervised machine learning, can improve SSP resolution by generating a dictionary of shape functions for sparse processing (e.g. compressive sensing) that optimally compress SSPs; both minimizing the reconstruction error and the number of coefficients.
WebMar 1, 2024 · The sound speed profile can be expressed as an expansion of the empirical orthogonal function for the sound speed variation. Bianco and Gerstoft (2024) developed a dictionary through a... fix time on iphoneWebDictionary learning of sound speed profiles. Article. Full-text available. Sep 2016; Michael J. Bianco. Peter Gerstoft. To provide constraints on their inversion, ocean sound speed profiles (SSPs ... canning mushrooms water bathWebMay 5, 2024 · Here, the constant k = ω / c is the acoustic wavenumber, ω is the angular frequency, c is the sound speed, and ki is the wavenumber along the i = x , y , z spatial coordinates. Assuming without loss of generality that waves propagate along the z -axis, their wavenumber is k z = ± k 2 − k x 2 − k y 2. canning my own dog foodWebMar 1, 2024 · Dictionary learning of sound speed profiles. Michael Bianco Scripps Institution of Oceanography, University of California San Diego, La Jolla, California … fix time on fitbit watchWebDictionary learning of sound speed profiles. J Acoust Soc Am. 2024 03; 141(3):1749. Bianco M, Gerstoft P. PMID: 28372126. View in: PubMed Mentions: 1 Fields: Aud Audiology Spe Speech-Language Pathology Multiple-array passive acoustic source localization in shallow water. J Acoust Soc Am. 2024 03; 141(3):1501. canningmxWebThe EOFs identify spatial structures with dominant variability and represent their temporal evolution without any prior information, expressing SSPs as a linear combination of few orthogonal basis functions that describe the statistics of … canning mustard recipeWebSep 15, 2016 · In this paper, it is shown that dictionary learning, a form of unsupervised machine learning, can improve SSP resolution by generating a dictionary of shape functions for sparse processing (e.g. compressive sensing) that optimally … canning naics code