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.
出处
《微计算机信息》
2009年第27期130-131,58,共3页
Control & Automation
关键词
微电波传输
菲涅尔区
噪声温度
信噪比
多径衰落
Microwave radio propagation
Fresnel Zone
Noise temperature
S/N ratio
Multi-path fading
