曲面射线管在复杂电磁环境预测中的应用

doi:10.13190/j.jbupt.2017-142

北京邮电大学学报 ›› 2018, Vol. 41 ›› Issue (1): 103-108.doi: 10.13190/j.jbupt.2017-142

曲面射线管在复杂电磁环境预测中的应用

吕娜¹, 石丹¹, 姜炜², 高攸纲¹, 唐朝汉¹

1. 北京邮电大学电子工程学院, 北京 100876;
2. 温州市铁路与轨道交通投资集团有限公司, 浙江温州 325000

收稿日期:2017-07-14 出版日期:2018-02-28 发布日期:2018-01-04
作者简介:吕娜(1992-),女,硕士生,E-mail:lvna2017@qq.com;石丹(1981-),女,副教授,硕士生导师.
基金资助:
国家自然科学基金项目（61771069）

Application of Curved Surface Ray Tube in the Prediction of Complex Electromagnetic Environment

LÜ Na¹, SHI Dan¹, JIANG Wei², GAO You-gang¹, TANG Chao-han¹

1. School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China;
2. Wenzhou Mass Transit Railway Investment Group Co., Ltd., Zhejiang Wenzhou 325000, China

Received:2017-07-14 Online:2018-02-28 Published:2018-01-04

摘要/Abstract

摘要： 提出了一种新型的曲面射线管应用于射线追踪中的绕射射线路径预测.相比于现有的四边形波前面绕射射线管，曲面射线管能够在追踪的过程中有效地减少计算时间，提高追踪效率.通过理论分析推导，证明该模型相比于四边形射线管，在采用的追踪实例中计算效率提高了约4倍.详细介绍了特殊凹陷地形与射线管求交的处理情况.通过基于四边形波前面射线管和曲面射线管的不同算法计算，对追踪时间和结果进行了对比，曲面射线管的平均计算时间缩短了约18.49%，平均误差仅为2.93%，效率得到了提高，也验证了追踪结果路径的准确性.

关键词: 曲面射线管, 射线追踪, 射线传播, 绕射路径, 电磁仿真

Abstract: A ray tracing method for predicting radio propagation based on a new curved surface ray tube was presented. Compared with the existing quadrilateral wave front diffraction ray tube, the curved surface ray tube can effectively reduce the calculation time and improve the efficiency during the tracing process. Calculation verified the high efficiency of the curved surface ray tube model, a 4 times speed up compared to the four-ray tube model was achieved. The method to deal with the intersection of the ray tube and the concave terrain was also introduced. Moreover, the wave propagations in several different environments were simulated with our developed software based on the curved surface ray tube and four-ray tube tracing method. Compared with the four-ray tube model, the average computational time of the cured surface ray tube model is shortened by about 18.49%, and the average error is only 2.93%. The simulation results prove the improvement of the efficiency and the accuracy of the tracing process.

Key words: curved surface ray tube, ray tracing, radio propagation, diffraction path, electromagnetic simulation

中图分类号:

X123

吕娜, 石丹, 姜炜, 高攸纲, 唐朝汉. 曲面射线管在复杂电磁环境预测中的应用[J]. 北京邮电大学学报, 2018, 41(1): 103-108.

LÜ Na, SHI Dan, JIANG Wei, GAO You-gang, TANG Chao-han. Application of Curved Surface Ray Tube in the Prediction of Complex Electromagnetic Environment[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2018, 41(1): 103-108.

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曲面射线管在复杂电磁环境预测中的应用

Application of Curved Surface Ray Tube in the Prediction of Complex Electromagnetic Environment

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