本文選題：氣象衛(wèi)星 + 國際移動通信系統(tǒng)�。� 參考：《氣象科技》2017年04期

【摘要】：目前我國風(fēng)云氣象衛(wèi)星廣泛使用的1695~1710 MHz頻段被2015年世界無線電大會考慮作為國際移動通信(IMT)系統(tǒng)新增劃分的候選頻段。為了保護(hù)氣象衛(wèi)星的頻譜資源并了解氣象衛(wèi)星和IMT系統(tǒng)用戶端的同頻共用干擾情況,本文闡述了風(fēng)云氣象衛(wèi)星地球站和IMT系統(tǒng)用戶終端在1695~1710 MHz頻段的特性參數(shù),建立了IMT用戶終端的干擾模型,分別仿真分析了潛在的IMT用戶端對太陽同步軌道和靜止軌道風(fēng)云氣象衛(wèi)星地面接收鏈路的干擾,結(jié)果表明:工作在1695~1710 MHz頻段的IMT用戶端對靜止和極軌衛(wèi)星地球站的保護(hù)隔離距離至少分別是46km和61km。由于我國布設(shè)了大量該頻段的氣象衛(wèi)星數(shù)據(jù)國家級站和省級用戶接收站,且移動終端隨機移動的特點,這兩種業(yè)務(wù)實際運行中無法兼容共用1695~1710 MHz頻段。
[Abstract]:At present, 1695 / 1710 MHz band, which is widely used by the Fengyun Meteorological Satellite in China, is considered as a candidate band for the new division of the International Mobile Communication (IMT) system by the World Radio Conference in 2015. In order to protect the frequency spectrum resources of meteorological satellites and to understand the same frequency common interference between meteorological satellites and IMT system users, the characteristic parameters of Fengyun meteorological satellite earth station and user terminal of IMT system in 1695 ~ 1710 MHz band are described in this paper. The interference model of IMT user terminal is established, and the interference of potential IMT client to the ground receiving link of solar synchronous orbit and geostationary orbit Fengyun weather satellite is simulated and analyzed, respectively. The results show that the protection isolation distance between the IMT client and the geostationary and polar orbit satellite earth stations is at least 46km and 61km, respectively, working in the 1695 ~ 1710 MHz band. Because a large number of meteorological satellite data stations and provincial user receiving stations have been set up in China, and the mobile terminals move randomly, the two kinds of services can not be compatible to share the 1695 / 1710 MHz frequency band in actual operation.
【作者單位】： 國家衛(wèi)星氣象中心;國家無線電監(jiān)測中心;中國衛(wèi)通集團(tuán)有限公司;
【基金】：中國氣象局關(guān)鍵技術(shù)“氣象衛(wèi)星系統(tǒng)與IMT系統(tǒng)在L頻段兼容性分析”資助
【分類號】：P414.4;TN929.5

【相似文獻(xiàn)】

相關(guān)期刊論文 前1條

1 宋任鋒,魏軍;本溪市氣象信息終端服務(wù)系統(tǒng)[J];遼寧氣象;2000年04期

，

本文編號：1801027