一种改进的非磁化等离子体SO-FDTD算法

doi:10.3969/j.issn.1001-2400.2015.03.028

J4 ›› 2015, Vol. 42 ›› Issue (3): 168-172.doi: 10.3969/j.issn.1001-2400.2015.03.028

一种改进的非磁化等离子体SO-FDTD算法

张厚1;许志永1;殷雄1;赵振维2;吴瑞1

(1. 空军工程大学防空反导学院，陕西西安 710051；
2. 中国电波传播研究所，山东青岛 266107)

收稿日期:2014-01-17 出版日期:2015-06-20 发布日期:2015-07-27
通讯作者: 张厚
作者简介:张厚(1962-)，男，教授，E-mail: warmer88@163.com．

Improved SO-FDTD method for non-magnetized plasmas

ZHANG Hou1;XU Zhiyong1;YIN Xiong1;ZHAO Zhenwei2;WU Rui1

(1. Air and Missile Defense College, Air Force Engineering Univ., Xi'an 710051, China;
2. China Research Institute of Radio-wave Propagation, Qingdao 266107, China)

Received:2014-01-17 Online:2015-06-20 Published:2015-07-27
Contact: ZHANG Hou

摘要/Abstract

摘要：

针对时域有限差分法解决复杂等离子体问题时效率低的问题，提出了一种改进的移位算子有限差分(SO-FDTD)算法．运用该算法计算了非磁化等离子体平板对电磁波的反射系数和透射系数，为等离子体中电磁波传播特性的分析提供了一定的理论指导．该算法采用内存优化算法减少了计算中的迭代变量，节约了系统内存，提高了计算速度．仿真实验表明，改进型算法的计算效率明显优于以往文献中提出的SO-FDTD算法，并且计算结果与解析解吻合得很好．

关键词: 非磁化, 等离子体, 移位算子, 时域有限差分

Abstract:

To improve the calculation efficiency of the FDTD method when dealing with the complex plasma problem, an improved shift operator-finite difference time domain(SO-FDTD) method for non-magnetized plasmas is prensented, and applied to calculate the reflection and transmission coefficients of the non-magnetized plasma flat, which provides a certain theoretical guidance to analysis of the propagation characteristics of the EM waves interacting with the plasma. The memory-minimized algorithm is applied to the method to save the system memory and improve the calculation speed. It is shown that the high efficiency and accuracy of the method are validated by comparing with the analytical method and the SO-FDTD method proposed in the recent references.

Key words: non-magnetized, plasmas, shift operator, finite difference time domain

张厚;许志永;殷雄;赵振维;吴瑞. 一种改进的非磁化等离子体SO-FDTD算法[J]. J4, 2015, 42(3): 168-172.

ZHANG Hou;XU Zhiyong;YIN Xiong;ZHAO Zhenwei;WU Rui. Improved SO-FDTD method for non-magnetized plasmas[J]. J4, 2015, 42(3): 168-172.

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一种改进的非磁化等离子体SO-FDTD算法

Improved SO-FDTD method for non-magnetized plasmas

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