微电波传输理论的实际应用研究  

A Practical Research Based on Radiowave Propagation Theory

作　　者：王逸隆[1] RICHARDS John 

机构地区：[1]青岛科技大学自动化与电子工程学院,青岛266000 [2]澳大利亚国立大学工程及计算机系

出　　处：《微计算机信息》2009年第27期130-131,58,共3页Control & Automation

摘　　要：基于微电波传输理论和实地考察,本文研究设计了澳大利亚堪培拉市的一条从Lanyon区到澳大利亚国立大学的双向微电波通信线路。通过对菲涅尔区,传输损失,天线噪声温度,多径衰落,信噪比,地形及实际天气情况影响的分析,选择了5m×5m无源反射器,SMW型低噪声双向转换器作为中间传输设备。计算结果表明,基于本文设计线路能满足实际通讯需要,具有较高实用价值和经济效益。Based on microwave radio propagation theory, a two-way communication link from Lanyon to the Australian National University in Canberra is designed. The Fresnel Zone data, transmission loss, antenna noise temperature, multi-path fading, signal-noise ratio are calculated, and the terrain and the weather factors are considered. Based on the calculation, a 5m×5m passive reflector and a SMW Low Noise Block Up/Down Converter are chosen as the transmission equipment in the middle. The results show that the design satisfies the practical communication and has high economic value if implemented.

关 键 词：微电波传输 菲涅尔区 噪声温度 信噪比 多径衰落 

分 类 号：TN015[电子电信—物理电子学]