研究了降雨对视距传输的LMDS正交极化产生的影响。
A research of the effect of rainfall on orthogonally polarized LMDS with line-of-sight transmission has been completed.
提出利用UWB数据传输速率高、多径分辨能力强以及非视距传输等优良特性来传递定位信息；
The locating information is transmitted in the UWB mode which has a high-speed transmission rate, a high multi-pathway resolving power, and a NLOS specialty;
分析了电波的地波绕射传播、视距传播、散射传播和波导传播等四种传播模式，根据ITU - R和GZB建议的模型分别计算了各传播模式的基本传输损耗。
Four propagation models of diffraction, line-of-sight, scatting and duct are analyzed. The basic transmission loss for each of the models is calculated according to the ITU-R model and GZB model.
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