An Efficient Acoustic Scattering Model Based on Target Surface Statistical Descriptors for Synthetic Aperture Sonar Systems
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Marine Science and Application"
DOI: 10.1007/s11804-020-00163-1
Abstract: Acoustic scattering as the perturbation of an incident acoustic field from an arbitrary object is a critical part of the target-recognition process in synthetic aperture sonar (SAS) systems. The complexity of scattering models strongly depends… read more here.
Keywords: proposed model; surface; target; model ... See more keywords
Acoustic scattering of buried stainless steel spheres: Theoretical analysis and experimental verification
Sign Up to like & getrecommendations! Published in 2021 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2020.107651
Abstract: Abstract The resonance characteristics of elastic acoustic scattering play an important role for buried target detection and identification. Taking a stainless steel sphere as the target, the acoustic scattering of the target under free-field and… read more here.
Keywords: resonance; stainless steel; acoustic scattering; free field ... See more keywords
Isogeometric Analysis of Acoustic Scattering using Infinite Elements
Sign Up to like & getrecommendations! Published in 2018 at "Computer Methods in Applied Mechanics and Engineering"
DOI: 10.1016/j.cma.2018.02.015
Abstract: Venas, Jon Vegard; Kvamsdal, Trond; Jenserud, Trond. Isogeometric Analysis of Acoustic Scattering using Infinite Elements. Computer Methods in Applied Mechanics and Engineering 2018 ;Volum 335. s. 152-193 read more here.
Keywords: analysis acoustic; isogeometric analysis; scattering using; using infinite ... See more keywords
Investigation into the bistatic evolution of the acoustic scattering from a cylindrical shell using time-frequency analysis
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2017.09.036
Abstract: Abstract The time and frequency analyses of the acoustic scattering by an elastic cylindrical shell in bistatic method show that the arrival times of the echoes and the resonance frequencies of the elastic waves propagating… read more here.
Keywords: waves waves; frequency; cylindrical shell; time frequency ... See more keywords
Acoustic scattering reduction of elliptical targets via pentamode near-cloaking based on transformation acoustics in elliptic coordinates
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2021.116396
Abstract: Abstract Cloaks for underwater applications designed for actual submarine acoustic stealth are still far from the technological advancement needed for being put in practice. Several challenges need to be overcome such as dealing with weight… read more here.
Keywords: acoustic scattering; pentamode; reduction elliptical; scattering reduction ... See more keywords
Acoustic scattering layers reveal a faunal connection across the Fram Strait
Sign Up to like & getrecommendations! Published in 2020 at "Progress in Oceanography"
DOI: 10.1016/j.pocean.2020.102348
Abstract: Abstract Acoustic scattering layers (SL) at various depths are common phenomena in most oceans, but the organisms that make up these layers vary and so does their density, and hence the backscattered energy. During two… read more here.
Keywords: strait; connection; fram strait; layers reveal ... See more keywords
Analytical Green's function for the acoustic scattering by a flat plate with a serrated edge
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2023.256
Abstract: Abstract An analytical Green's function is developed to study the acoustic scattering by a flat plate with a serrated edge. The scattered pressure is solved using the Wiener–Hopf technique in conjunction with the adjoint technique.… read more here.
Keywords: flat plate; function; analytical green; green function ... See more keywords
Bayesian approach to inverse time-harmonic acoustic scattering with phaseless far-field data
Sign Up to like & getrecommendations! Published in 2020 at "Inverse Problems"
DOI: 10.1088/1361-6420/ab82ee
Abstract: This paper is concerned with inverse acoustic scattering problem of inferring the position and shape of a sound-soft obstacle from phaseless far-field data. We propose the Bayesian approach to recover sound-soft disks, line cracks and… read more here.
Keywords: far field; bayesian approach; field data; phaseless far ... See more keywords
Modeling method on acoustic scattering from penetrable objects using a hybrid Kirchhoff/ray approach
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the Acoustical Society of America"
DOI: 10.1121/1.4987455
Abstract: A method is put forward to investigate the acoustic scattering from double-sided water loaded targets which is penetrable even in high frequency. The present approach is an extension of the TriKirch method which was elaborated… read more here.
Keywords: modeling method; method; method acoustic; acoustic scattering ... See more keywords
Application of smoothed finite element method to acoustic scattering from underwater elastic objects
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the Acoustical Society of America"
DOI: 10.1121/1.4988103
Abstract: In this work, the smoothed finite element method (S-FEM) is employed to solve the acoustic scattering from underwater elastic objects. The S-FEM, which can be regarded as a combination of the standard finite element method… read more here.
Keywords: finite element; underwater elastic; element method; scattering underwater ... See more keywords
Simulation and Statistical Modeling of Acoustic Scattering of Bubble Wakes
Sign Up to like & getrecommendations! Published in 2018 at "Mathematical Problems in Engineering"
DOI: 10.1155/2018/3242703
Abstract: Ship wakes are large, exist for a long time, and are difficult to disguise or conceal. These characteristics can be used as an important basis for ship tracking and recognition. However, distinguishing between wakes, underwater… read more here.
Keywords: scattering bubble; modeling acoustic; statistical modeling; acoustic wake ... See more keywords