建筑物密集区空对空通道的概率双射线模型
Probabilistic Two-Ray Model for Air-to-Air Channel in Built-Up Areas
摘要：
本文提出了一种适用于建筑密集区的空-空（AA）传播信道的概率双射线（PTR）路径损耗模型。基于城市分布的统计模型，PTR路径损耗模型可以应用于郊区、市区、密集市区和高层城市。在射线追踪模拟中，路径损耗最佳拟合为威布尔分布，其波动拟合为正态分布。该模型与射线追踪法的结果吻合较好，表明该模型可以为高空平台的准确、快速预报提供一种有效的工具。作为PTR模型的扩展研究，我们通过大量的仿真实验提取了阴影因子，提出了高度相关阴影模型。实验结果表明，本文提出的阴影模型与基于测量的模型具有很好的一致性，表明本文的研究具有良好的可扩展性和通用性。
英文摘要：
In this paper, we present a probabilistic two-ray (PTR) path loss model for air-to-air (AA) propagation channel in built-up areas. Based on the statistical model of city deployment, the PTR path loss model can be applied to suburban, urban, dense urban, and high-rise urban. The path loss is optimally fitted as the Weibull distribution and its fluctuation is fitted as the Normal distribution in ray-tracing simulations. The good agreements between our model and ray tracing indicate the proposed model can provide a useful tool for accurate and quick prediction for aerial platforms. As an extended research of PTR model, we extract the shadowing factor by numerous simulations and propose the altitude-dependent shadowing model. The result shows that the proposed shadowing model has very good consistent with the measurement-based model, which indicates that our research performs well in the extensibility and generality.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
