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A Three-Dimensional Locally One-Dimensional Multiresolution Time-Domain Method Using Daubechies Scaling Function

  • Ryu, Jae-Jong (School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Lee, Wu-Seong (School of Electrical Engineering and Computer Science, Kyungpook National University) ;
  • Kim, Ha-Chul (Department of Information and Communication Engineering, Korea Naval Academy) ;
  • Choi, Hyun-Chul (School of Electrical Engineering and Computer Science, Kyungpook National University)
  • Published : 2009.12.31

Abstract

A three-dimensional locally one-dimensional multiresolution time-domain(LOD-MRTD) method is introduced and unconditional stability is proved analytically. The updating formulations have fewer terms on the right-hand side than those of an alternating direction implicit MRTD(ADI-MRTD). The validation of the method is presented using the resonance frequency problem of an empty cavity. The reduction of the numerical dispersion technique is also combined with the proposed method. The numerical examples show that the combined method can improve the accuracy significantly.

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