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

doi:10.13190/j.jbupt.2017-142

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2018, Vol. 41 ›› Issue (1): 103-108.doi: 10.13190/j.jbupt.2017-142

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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

Abstract

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

CLC Number:

X123

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

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