沙尘天气对无线电测控设备性能的影响研究  

Influence of Sand-dust Weather on Performance of Radio TT&C Equipment

作　　者：葛铁志 钟水和[1] 黄龙呈[1] 马鹤[1] 

机构地区：[1]中国酒泉卫星发射中心,甘肃酒泉732750

出　　处：《无线电工程》2016年第12期63-67,共5页Radio Engineering

摘　　要：针对无线电测控设备系统G/T值测试数据在晴朗天气和沙尘天气下的差异,从沙尘粒子的特性出发,结合干沙与水的复介电常数公式,获得了沙粒的等效介电常数模型,建立了沙尘粒子引起微波衰减的计算模型,对该设备G/T值测试结果受沙尘天气影响的现象进行了分析。结果表明:沙尘天气对设备G/T值测试结果有明显的影响。沙尘粒子密度越小,沙尘衰减越轻微;沙尘粒子密度越大,沙尘衰减越严重。给出了沙尘天气对无线电测控设备性能的影响程度。Considering the difference of G/T value test data of radio TT＆C equipment in sunny weather and sand-dust weather, based on the characteristics of sand-dust particles and combing with the complex dielectric constant formula of dry sand and water,the equivalent dielectric constant model of sand particles is obtained, and the calculation model of microwave attenuation caused by sand and dust particles is established.The test results indicate that sand-dust weather has significant influence on the value of equipment G/T.The sand-dust attenuation is more serious as the density of sand-dust particles increases ,and vice versa.The impact of sand-dust weather on the performance of radio TT＆C equipment is also provided.

关 键 词：等效介电常数 沙尘粒子 沙尘衰减 G/T值 

分 类 号：TN925[电子电信—通信与信息系统]