用修正的UTD模型预测室内电波传播

Propagation Prediction in Indoor Environments with a Modified UTD Model

分析了现有预测室内电波传播的2-D/3-D混合算法模型的不足,提出一种修正模型,该模型建立在环境的二维对地平面图基础上。在建立可见性树时,结合实际三维环境的特点引入分别相对于发射机和接收机的两个对地投影平面图和一个矢量标准判据来决定可见的元素。计算结果与测量结果符合较好,表明该模型的准确性和高效性。

By analyzing the limitations in the existing 2-D/3-D hybrid model, a modified UTD model combined with the actual characteristics for indoor propagation prediction is presented. The model is based on the plannar chart of the environments for a transmitter and a receiver located at the same room. It introduces two plane views reference to the transmitter and the receiver respectively and a normal vector criterion to construct the visibility tree. The calculation resuhs show that the model is efficient and accurate.