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GPU based FDTD method for investigation on the electromagnetic scattering from 1-D rough soil surface

C.-G. Jia, L.-X. Guo, J. Li
School of Science, Xidian University, No. 2, Taibai Road, Xi’an, Shaanxi 710071 China
International Symposium on Antennas and Propagation (ISAP), 2013

@article{jia2013based,

   title={GPU based FDTD method for investigation on the electromagnetic scattering from 1-D rough soil surface},

   author={Jia, C.-G. and Guo, L.-X. and Li, J.},

   year={2013}

}

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In this paper, the graphic processor unit (GPU) implementation of the finite-difference time domain (FDTD) algorithm is presented to investigate the electromagnetic (EM) scattering from one dimensional (1-D) Gaussian rough soil surface. The FDTD lattices are truncated by uniaxial perfectly matched layer (UPML), in which the finite-difference equations are carried out for the total computation domain. Using Compute Unified Device Architecture (CUDA) technology, significant speedup ratios are achieved for different incident frequencies, which demonstrates the efficiency of GPU accelerated the FDTD method. The validation of our method is verified by comparing the numerical results with these obtained by CPU, which shows favorable agreements.
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