Results 11 to 20 of about 1,686,769 (280)
Low Computational Cost Mirror Kirchhoff Approximation for Predicting Shadowing Effect
IEEE Access, 2022 This paper proposes a 2-dimensional low computational cost mirror Kirchhoff approximation (MKA) and the design of simulation parameters to accurately predict the shadowing gain for an arbitrarily shaped conductor cylinder.
Xin Du, Jun-Ichi Takada
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IEEE Access, 2023 This paper proposes the simulation parameters of the fast Fourier transform (FFT) for the 3-dimensional (3D) split step parabolic equation (SSPE) and the mirror Kirchhoff approximation (MKA).
Xin Du, Jun-Ichi Takada
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Generalized Kirchhoff approximation for Helmholtz equation
, 2014 15 ...
Cuvelier, François
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Journal of The Optical Society of America A-optics Image Science and Vision, 2017 Accuracy of Kirchhoff approximation (KA) for rough-surface electromagnetic wave scattering is studied by comparison with accurate numerical solutions in the context of three-dimensional dielectric surfaces.
M. Franco +5 more
semanticscholar +2 more sources
A NOVEL MIRROR KIRCHHOFF APPROXIMATION METHOD FOR PREDICTING THE SHADOWING EFFECT BY A METAL CUBOID
Progress In Electromagnetics Research M, 2021 |This paper proposes an efficient and accurate scattered (cid:12)eld prediction method based on Kirchhoff Approximation called ‘Mirror Kirchhoff Approximation’ (MKA) which is suitable for evaluating the shadowing effect by a metal cuboid. The disadvantages of
Xin Du +3 more
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Acoustic Scattering Models from Rough Surfaces: A Brief Review and Recent Advances
Applied Sciences, 2020 This paper proposes a brief review of acoustic wave scattering models from rough surfaces. This review is intended to provide an up-to-date survey of the analytical approximate or semi-analytical methods that are encountered in acoustic scattering from ...
Michel Darmon +2 more
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Exact Artificial Boundary Conditions for Quasi-Linear Problems in Semi-Infinite Strips
Journal of Mathematics, 2021 In this paper, the exact artificial boundary conditions for quasi-linear problems in semi-infinite strips are investigated. Based on the Kirchhoff transformation, the exact and approximate boundary conditions on a segment artificial boundary are derived.
Yajun Chen, Qikui Du
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Algorithms and error bounds for multivariate piecewise constant approximation [PDF]
, 2010 We review the surprisingly rich theory of approximation of functions of many vari- ables by piecewise constants. This covers for example the Sobolev-Poincar´e inequalities, parts of the theory of nonlinear approximation, Haar wavelets and tree ...
Oleg Davydov, Davydov, Oleg
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Modeling High-Frequency Backscattering from a Mesh of Curved Surfaces Using Kirchhoff Approximation [PDF]
Journal of Theoretical and Computational Acoustics, 2018 The Kirchhoff approximation (K-A) to calculate the acoustic backscattering of a complex structure can be evaluated using a discretized version of its surface (i.e, a mesh).
E. Lavia, Juan D. Gonzalez, S. Blanc
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Effects of surface ship motion attitude on acoustic scattering characteristics
Zhongguo Jianchuan Yanjiu, 2023 ObjectivesIn order to further improve the accuracy of torpedoes in the acoustic homing identification of complex surface targets, a simulation study on the acoustic scattering characteristics of surface ship motion attitudes in random waves is carried ...
Yan LIU +4 more
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