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2022-09-28
A Fast Prediction Method for the Radio Propagation Under the Obstacle Environment
By
Progress In Electromagnetics Research C, Vol. 124, 211-225, 2022
Abstract
To rapidly simulate the forward electromagnetic scattering of multiple obstacles, we propose a new forward scattering prediction model, which can effectively simulate the propagation of electromagnetic waves in a large-scale environment, accurately calculate the scattering of multi-scale structures, and realize multi-region parallel computation. Specifically, the proposed model consists of an obstacle region and a large-scale environment region. To make the model consistent with the real scene quickly and accurately, the time-domain parabolic equation (TDPE) and the discontinuous Galerkin time-domain (DGTD) method are employed to simulate the propagation of electromagnetic waves and the scattering of obstacles, respectively. At the same time, each region is equivalent to a linear time-invariant (LTI) system, and the transfer function of each system is calculated by the discrete Laplace Z-transform to realize multi-region parallel computation. This model can simulate the propagation of the electromagnetic wave in multiple obstacles more quickly under large-scale background than the existing obstacle forward scattering model. Numerical results demonstrate that the proposed model is effective in terms of accuracy and runtime performance.
Citation
Ceyi Ma, Yinghong Wen, Jinbao Zhang, and Dan Zhang, "A Fast Prediction Method for the Radio Propagation Under the Obstacle Environment," Progress In Electromagnetics Research C, Vol. 124, 211-225, 2022.
doi:10.2528/PIERC22081705
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