迭代不变性测试方程法在城市微小区电波传播预测中的应用  

Analysis of Electromagnetic Wave Propagation Prediction in Urban Microcell by ITMEI Algorithm

作　　者：宰昕宇[1] 洪伟[1] 

机构地区：[1]东南大学毫米波国家重点实验室

出　　处：《通信学报》1999年第3期9-14,共6页Journal on Communications

基　　金：国家杰出青年基金

摘　　要：本文建立了基于不变性测试方程法的二维城市微小区电波传播预测模型。该模型考虑了地面反射和建筑物墙面的二维散射，利用ＭＥＩ方法在每个建筑物表面建立共形差分网格形成差分方程，并用迭代方法模拟电波在建筑物之间的多次散射。所得结果与实测值及ＧＴＤ、ＦＤＴＤ的预测结果进行了比较。This paper presents a two dimensional propagation model for path loss prediction in a typical urban microcell,based on measured equation of invariance (MEI).This model takes into account ground reflection and multiple scattering among walls of buildings.FD equations at conformal mesh nodes around surface of the buildings are derived by MEI method,and the scattering among buildings is simulated by iterative algorithm.Numerical results for the received power are in agreement with the measured data and that predicted by GTD and FDTD.

关 键 词：微小区 MEI方法 多柱体散射 迭代过程 路径损耗 

分 类 号：TN011[电子电信—物理电子学] TU994[建筑科学—市政工程]