Multi-Time-Step Finite-Difference Time-Domain Method

ZHENG Yang-ming; CHU Qing-xin

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Multi-Time-Step Finite-Difference Time-Domain Method

更新时间：2025-07-16

- Multi-Time-Step Finite-Difference Time-Domain Method
- Acta Electronica Sinica Vol. 32, Issue 9, Pages: 1504-1506(2004)
- 作者机构：
  
  1. 华南理工大学电子与信息学院,广东,广州,510640
  2. 西安电子科技大学电子工程学院,陕西,西安,710071
  3. 华南理工大学电子与信息学院广东广州,510640
  4. 西安电子科技大学电子工程学院陕西西安,710071
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN015
- Published Online：25 September 2004，
  
  Published：2004
- 稿件说明：
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ZHENG Yang-ming, CHU Qing-xin. Multi-Time-Step Finite-Difference Time-Domain Method[J]. Acta Electronica Sinica, 2004, 32(9): 1504-1506.
DOI：

ZHENG Yang-ming, CHU Qing-xin. Multi-Time-Step Finite-Difference Time-Domain Method[J]. Acta Electronica Sinica, 2004, 32(9): 1504-1506. DOI：

摘要

本文提出的多时间步长有限差分(MTS-FDTD)法针对不同网格尺寸区域采用不同时间步

从而减少了计算时间.应用例子表明

MTS-FDTD法比ETS-FDTD法计算时间减少了42%以上.

Abstract

To keep the stability

the time step length of traditional equal-time-step non-uniform finite-difference time-domain (ETS-FDTD) method is determined by the minimized grid size

which results in a long computational time.A multi-time-step finite-difference time-domain (MTS-FDTD) method is presented

which uses different time step lengths in different grid regions to reduce computational time.Numerical results demonstrate that MTS-FDTD method reduces more than 42 percent of computational time than ETS-FDTD method.

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