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首页> 外文期刊>Applied Computational Electromagnetics Society journal >An Improved Shooting and Bouncing Ray Method for Outdoor Wave Propagation Prediction
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An Improved Shooting and Bouncing Ray Method for Outdoor Wave Propagation Prediction

机译：一种改进的射击和弹跳射线方法，用于室外波的传播预测

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摘要

An improved algorithm for shooting and bouncing ray tracing (SBR) is proposed in this paper. The conventional SBR method has to launch a large number of rays or ray tubes to guarantee the accuracy, which increases the calculation time significantly. This paper presents a novel adaptive ray launching (ARL) method based on the pattern of transmitting antenna, which reduces the launched rays greatly while maintaining the computation accuracy. Some examples of applying the proposed method to calculate the outdoor radio wave propagation are presented, and the results are compared with the measurements and simulations. The good agreements between them validate the proposed approach. The method has a high gain in terms of computational efficiency (about 480% speedup compared with 10 uniform ray launching).
机译：提出了一种改进的射击和弹跳射线追踪算法（SBR）。传统的SBR方法必须发射大量的射线或射线管以保证精度，这大大增加了计算时间。本文提出了一种基于发射天线方向图的自适应射线发射（ARL）方法，该方法在保持计算精度的同时，大大减少了发射射线。给出了应用该方法计算室外无线电波传播的一些示例，并将结果与​​测量和仿真进行了比较。他们之间的良好协议验证了所提出的方法。该方法在计算效率方面具有很高的增益（与10次均匀射线发射相比，加速约480％）。

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