| 室内无线传播中一种混合建模方法的改进 |
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| 引用本文： | 黄永明,吕英华,徐立,冯晓俊,张洪欣.室内无线传播中一种混合建模方法的改进[J].北京邮电大学学报,2004,27(1):13-17. |
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| 作者姓名： | 黄永明 吕英华 徐立 冯晓俊 张洪欣 |
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| 作者单位： | 北京邮电大学 继续教育学院, 北京 100876 |
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| 摘 要： | 改进了一种基于射线跟踪法和时域有限差分法的混合方法,并用于室内无线传播的数值建模研究。推导了用于混合方法的完美匹配层(PML)吸收边界条件的有限差分公式,给出了对比结果。计算结果的图像显示,可以达到15%改善,并获得更准确的传播预测。
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| 关 键 词： | 混合建模方法 射线跟踪法 时域有限差分法 室内无线传播 |
| 文章编号： | 1007-5321(2004)01-0013-05 |
| 收稿时间： | 2002-10-15 |
| 修稿时间： | 2002年10月15日 |
An Improved Hybrid Method for Modeling Indoor Radio Propagation |
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| HUANG Yong-ming,LU Ying-hua,XU Li,FENG Xiao-jun,ZHANG Hong-xin.An Improved Hybrid Method for Modeling Indoor Radio Propagation[J].Journal of Beijing University of Posts and Telecommunications,2004,27(1):13-17. |
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| Authors: | HUANG Yong-ming LU Ying-hua XU Li FENG Xiao-jun ZHANG Hong-xin |
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| Affiliation: | Continuing Education School, Beijing University of Posts and Telecommunications, Beijing 100876, China |
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| Abstract: | A hybrid method of combing ray tracing and finite-difference time-domain (FDTD) method is improved. This method is used to indoor radio propagation numerical modeling work. The difference equations of the perfectly matched layer (PML) absorbing boundary conditions used in the hybrid method are given. An example is calculated and the resultant graphs reveal that the improvement can reach 15 percent. So, more accurate propagation prediction can be obtained by using the improved method. |
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| Keywords: | a hybrid method ray tracing finite-difference time-domain (FDTD) method indoor radio propagation |
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