Results 21 to 30 of about 21,815 (267)
Journal of Computer and Communications, 2020 In this paper, we proposed a novel multilayer perceptron (MLP) based Finite-Difference Time-Domain (FDTD) method to reduce the time complexity of the conventional FDTD method, MLP neural networks can be used to replace the field quantities update equations and we found that in certain scenario, we can greatly reduce the time complexity of FDTD method.
Shuangyang Li +4 more
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Error between unconditionally stable FDTD methods and conventional FDTD method
Electronics Letters, 2006 Both the ADI-FDTD method and the CN-FDTD method can be viewed as approximate factorisation of the conventional FDTD scheme, so the error between these methods and the conventional FDTD method is obtained. It is shown that the error is associated with the time step size, the permittivity and the permeability of the medium, and the spatial variation rate
J. Chen, J. Wang
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Calculation of losses in 2-D photonic crystal membrane waveguides using the 3-D FDTD method [PDF]
, 2004 The three-dimensional finite-difference time-domain method is used to obtain loss per unit length in a two-dimensional photonic crystal membrane waveguide by simulating three different length guides. Results are shown for propagation both above and below
Craddock, IJ +5 more
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Analysis of losses in 2D photonic crystal waveguides using the 3D finite difference time domain (FDTD) method [PDF]
, 2002 The 3D FDTD method is used to obtain loss versus hole depth in a 2D photonic crystal waveguide by simulating two different length guides. The transmission results are validated against published measured data.
Craddock, IJ +4 more
core +2 more sources
Remote Sensing, 2022 Ground penetrating radar (GPR) forward modeling is one of the core geophysical research topics and also the primary task of simulating ground penetrating radar system.
Guoda Xie +5 more
doaj +1 more source
International Journal of Antennas and Propagation, 2019 The finite-difference time-domain (FDTD) method has been popularly utilized to analyze the electromagnetic (EM) wave propagation in dispersive media. Various dispersion models were introduced to consider the frequency-dependent permittivity, including ...
Hongjin Choi +3 more
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Efficient Finite-Difference Time-Domain Modeling of Time-Varying Dusty Plasma [PDF]
Journal of Electromagnetic Engineering and Science, 2022 The finite-difference time-domain (FDTD) method has been widely used for the electromagnetic analysis of dusty plasma sheath in reentering hypersonic vehicles.
Yong-Jin Kim +2 more
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Rotated Subgrids in the FDTD Method [PDF]
IEEE Transactions on Antennas and Propagation, 2016 Although the finite-difference time-domain (FDTD) method is well established for addressing a wide variety of problems, a long standing challenge is to reduce discretization errors while avoiding the use of impractically large numbers of cells, particularly when the structure is large and contains regions of fine detail. One solution is to use subgrids,
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Frontiers in Earth Science, 2021 Infrasound data are routinely used to detect and locate volcanic and other explosions, using both arrays and single sensor networks. However, at local distances (<15 km) topography often complicates acoustic propagation, resulting in inaccurate ...
David Fee +10 more
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A linear bicharacteristic FDTD method [PDF]
IEEE Antennas and Propagation Society International Symposium. 2001 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.01CH37229), 2002 The linear bicharacteristic scheme (LBS) is a classical leapfrog algorithm, but is combined with upwind bias in the spatial derivatives. This approach preserves the time-reversibility of the leapfrog algorithm, which results in no dissipation, and it permits more flexibility by the ability to adopt a characteristic based method.
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