Dictionary learning of sound speed profiles

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August undefined, 2024

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... WebDictionary learning of sound speed profiles To provide constraints on the inversion of ocean sound speed profiles (SSPs), SSPs are often modeled using empirical …

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WebThe sound speed is a key parameter that affects the underwater acoustic positioning and navigation. Aiming at the high-precision construction of sound speed field (SSF) in the complex... how gets the stimulus money

A sparse dictionary learning-based denoising method for …

WebDictionary learning of sound speed profiles Michael Biancoa) and Peter Gerstoft Scripps Institution of Oceanography, University of California San Diego, La Jolla, … WebDictionary 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. WebJan 19, 2024 · Empirical orthogonal functions (EOFs) are regularly employed to model and represent SSPs using a linear combination of basis functions that capture the sound … highest gear rating swtor

Dictionary learning of sound speed profiles. - Europe PMC

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WebMay 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. WebOct 19, 2024 · Sparse Representation of Sound Speed Profiles Based on Dictionary Learning Abstract: The perturbations of sound speed profiles (SSPs) has great influence on sound propagation. Empirical orthogonal functions (EOFs) are often used to simplify the description of sound speed profiles. highest gear level in ghost recon breakpointWebOct 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 ... highest gdps in the world

"WebDictionary 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 ... " - Dictionary learning of sound speed profiles

Dictionary learning of sound speed profiles

Inversion of the sound speed profiles with an AUV carrying source …

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 … WebMar 1, 2016 · Ocean acoustic sound speed profile (SSP) estimation requires the inversion of acoustic fields using limited observations. Compressive sensing (CS) asserts that certain underdetermined...

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WebFeb 6, 2024 · ABSTRACT. Uncertainties abound in sound speed profiles (SSPs) measured/estimated by modern ocean observing systems, which impede the … WebThe inverse problem is formulated as a state-space model with a state equation for the time-evolving sound speed profile and a measurement equation that incorporates acoustic …

WebDefinition of Sound was a London-based dance-music group, consisting of Kevin Clark and Don Weekes, working with musicians Rex Brough (aka The Red King) and later Mike … WebSep 15, 2016 · Dictionary learning of sound speed profiles September 2016 The Journal of the Acoustical Society of America140(4) …

WebMar 1, 2024 · Dictionary learning of sound speed profiles. Michael Bianco Scripps Institution of Oceanography, University of California San Diego, La Jolla, California … 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...

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... highest gear level in wowWebAbstract: A range-dependent dictionary learning method is proposed to retrieve the sound-speed profile (SSP) in a water body, with the whole computational domain … highest gdp state wiseWebAug 4, 2024 · Sound speed profile reconstruction using the dictionary learning (Bianco and Gerstoft, 2024). Seabed substrate maps including bathymetry, backscatter strength, and machine learning and... highest gearWebOct 19, 2024 · Sparse Representation of Sound Speed Profiles Based on Dictionary Learning Abstract: The perturbations of sound speed profiles (SSPs) has great … highest gdps per capitaWebSep 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. how gets stimulus checkWebDictionary learning of sound speed profiles. Michael Bianco and Peter Gerstoft. 13 March 2024 The Journal of the Acoustical Society of America, Vol. 141, No. 3. Inverse Methods in Underwater Acoustics. N.R. Chapman. 1 Jan 2024. Compressive acoustic sound speed profile estimation. how get structure table hana studioWebThe water depth is 160 m. Sound speed, density, and attenuation are 1800 m/s, 2.0 g/cm 3 , and 0.1 dB/λ, respectively. ... from publication: Compressive Sound Speed Profile Inversion Using ... highest gear car