Application of Super-Time-Stepping Method into Multi-Domain Pseudospectral Time-Domain Algorithm

SHI Yan; LI Long; LIANG Chang-hong

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Application of Super-Time-Stepping Method into Multi-Domain Pseudospectral Time-Domain Algorithm

更新时间：2025-07-16

- Application of Super-Time-Stepping Method into Multi-Domain Pseudospectral Time-Domain Algorithm
- Acta Electronica Sinica Vol. 33, Issue 6, Pages: 1136-1139(2005)
- 作者机构：
  
  西安电子科技大学天线与微波技术国家重点实验室,陕西,西安,710071
- 作者简介：
- 基金信息：
- DOI：
  CLC： O441.4
- Published：2005
- 稿件说明：
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SHI Yan, LI Long, LIANG Chang-hong. Application of Super-Time-Stepping Method into Multi-Domain Pseudospectral Time-Domain Algorithm[J]. Acta Electronica Sinica, 2005, 33(6): 1136-1139.
DOI：

SHI Yan, LI Long, LIANG Chang-hong. Application of Super-Time-Stepping Method into Multi-Domain Pseudospectral Time-Domain Algorithm[J]. Acta Electronica Sinica, 2005, 33(6): 1136-1139. DOI：

摘要

为了解决时域有限差分算法(FDTD)和伪谱时域算法(PSTD)稳定性方面的不足

本文提出了一种基于超时间步(STS)的多区域伪谱时域算法(STS-MPSTD).该算法不仅具有传统的多区域伪谱时域算法分析任意曲边形体问题时的精确性和灵活性

而且在维持显式时间积分的简单性和精确性的同时也让它不受稳定性条件的约束.最后文中给出的数值实例结果与解析结果完全吻合

这充分证明了该算法具有高的精度和良好的稳定性.

Abstract

A new time domain algorithm which combines Super-Time-Stepping (STS) method and the multi-domain pseudospectral time domain (PSTD) algorithm is presented.This algorithm not only maintains accuracy and flexibility of PSTD for an accurate treatment of arbitrarily curved objects but also frees the explicit time integration scheme from the stability restriction

rendering it as usable as any implicit time integration scheme.Some numerical examples are given to illustrate the accuracy and stability of the proposed approach.

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