计算机工程Issue(3)：143-146,151,5.DOI:10.3969/j.issn.1000-3428.2014.03.029
基于三维反向射线跟踪的电波传播预测
Radio Wave Propagation Prediction Based on 3D Reverse Ray-tracing
摘要
Abstract
In traditional reverse ray-tracing and predicting model, the order of reflection and diffraction is two or less. In this paper, a new 3D reverse ray-tracing algorithm for accurate field strength prediction is proposed, particularly suitable for urban scenarios. The orders of reflection and diffraction are arbitrary. Virtual source tree is created by directing search, and after that all valid paths from transmitter to receiver can be found quickly by inversing search. The effects of order of reflection and diffraction on predicting precision and complexity are also analyzed. Numerical results of the simulation show that this algorithm has higher accuracy and efficiency, which is quite useful for the design and optimization of wireless network.关键词
三维射线跟踪/电波传播/损耗预测/反向算法/加速算法/绕射Key words
3D ray-tracing/radio wave propagation/loss prediction/reverse algorithm/acceleration algorithm/diffraction分类
信息技术与安全科学引用本文复制引用
唐亚平,徐大专,朱秋明,任佳敏,周生奎,黄攀..基于三维反向射线跟踪的电波传播预测[J].计算机工程,2014,(3):143-146,151,5.基金项目
航空科学基金资助项目(20120152001)；中央高校基本科研业务费专项基金资助项目(NZ2012012)；中国博士后科学基金资助项目(2013M541661)；南京航空航天大学研究生学位论文创新与创优基金资助项目(DZS201103)；南京航空航天大学研究生创新基地(实验室)开放基金资助项目(kfjj130115)。 （20120152001）
