微蜂窝多径色散信道电波损耗预测的建模与仿真

本文在深入分析微蜂窝移动无线信道特性及其传播机理的基础上，研究和提出了微蜂窝多径色散信道电波传播损耗的一般性 预测模型，其特点是用附加路径衰减因子来表征三维多径色散信道特性对电波传播的影响，以及用传播信道第一菲涅耳区的最上拐点距离作为统一反映天线高度和频率影响的特征参量；最后根据该预测模型对不同情况下的电波损耗特性进行了仿真分析。

Prediction Modelling and Computer Simulation of Radio Wave Propagation Loss in Microcellular Multipath Dispersive Channel

Based on deeply analyzing the propeties and propagation mechanisms of microcellular mobile radio channel, this paper researches and proposes the new generalized prediction model of radio wave propagation loss in microcellular multipath dispersive channel, whose key points are to characterize the influence of three dimensions multipath dispersive channel performance on radio propagation with the help of additional path attenuation factor, and to use the minimum inflection point distance of the first Fresnel region in propagation channel as a characteristic porameter expressing unitedly the influences of antenna height and frequency. Finally accordingto the prediction model, the radio wave propagation loss performance in different conditions is analytically simulated.