广州地区33．5GHz和93GHz降雨传播特性测量  

The Measurement of Rain-induced Propagation Characteristics at 33.5 GHz and 93 GHz in Guangzhou

作　　者：赵振维[1] 黄捷[1] 董庆生[1] 吴志状 周兆先[1] 胡大璋[1] 

机构地区：[1]中国电波传播研究所青岛研究中心

出　　处：《电波科学学报》1994年第2期52-59,共8页Chinese Journal of Radio Science

摘　　要：本文给出了１９９２年７—９月份广州地区Ｏ．４ｋｍ地面电路３３．５ＧＨｚ和９３ＧＨｚ雨衰减测量结果及雨衰减和降雨率短期统计结果之间的关系，并利用这一结果和长期降雨率统计对雨衰减预报作了初步探讨。同时分析了３３．５ＧＨＺ和９３ＧＨＺ雨衰减频率换算关系。文中还导出了雨致交叉极化鉴别度（ＸＰＤ）与实测差分衰减和差分相移之间的理论关系。在８ｍｍ波段可忽略差分相移的情况下，给出了利用３３．５ＧＨｚ部分实测差分衰减计算的ＸＰＤ结果，并与理论模式预测值作了比较。The measured results of rain attenuation at 33. 5 GHz and 93 GHz on a terrestrial path of 0. 4 km inGuangzhou during July- September of 1992 and the statistical relation belween rain attenuation and rainfall rate inthis period are given. The prediction and frequency scaling of rain attenuation at 33. 5GHz and 93GHz are discussed.The relation between the rain- induced XPD and the measured results of differential attenuation and phase shift arealso derived in the paper. Under the condition of ignoring differential phase shift in 8mm waveband, the calculatedresults of rain-induced XPD by using some measured differential attenuation data are given and compared with theresults predicted by theoretical model.

关 键 词：降雨 传播特性 测量 广州 

分 类 号：TN011[电子电信—物理电子学]