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2012-03-26
Hybrid TDIE-TDPO Method Using Weighted Laguerre Polynomials for Solving Transient Electromagnetic Problems
By
Progress In Electromagnetics Research, Vol. 126, 375-398, 2012
Abstract
An efficient and stable hybrid method, based on the time-domain integral equation (TDIE) and time-domain physical optics (TDPO), is developed for investigating transient radiation and scattering from perfectly electrical conducting (PEC) objects. It at first requires partitioning the PEC object surface into TDIE and TDPO regions, respectively. Then, a set of hybrid TDIE-TDPO equations is derived and solved using an adaptive marching-on-in-order (MOO) method. The fast Fourier transforms (FFT)-based blocking scheme is further implemented into the proposed algorithm so as to reduce N2O dependence of the traditional MOO method to NOlog2(NO), where NO is the highest order of the weighted Laguerre polynomials used for computation. Under such circumstances, its computational cost, in comparison with the full TDIE-MOO solver, is reduced significantly. Several numerical examples are presented to demonstrate its accuracy and efficiency in solving some typical transient electromagnetic problems.
Citation
Ming-Da Zhu, Xi-Lang Zhou, Wei Luo, and Wen-Yan Yin, "Hybrid TDIE-TDPO Method Using Weighted Laguerre Polynomials for Solving Transient Electromagnetic Problems," Progress In Electromagnetics Research, Vol. 126, 375-398, 2012.
doi:10.2528/PIER11111302
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