基于北斗的自动气象站报文传输方案设计  

Designation of Automatic Weather Station Message Transmission Project Based on Beidou

作　　者：王明辉 雷卫延 黄海㼆 黄飞龙 Wang Minghui;Lei Weiyan;Huang Haiying;Huang Feilong(Guangdong Meteorological Observation Data Center,Guangzhou 510080)

机构地区：[1]广东省气象探测数据中心,广州510080

出　　处：《气象科技》2019年第6期900-904,915,共6页Meteorological Science and Technology

基　　金：广东省气象探测数据中心科学技术研究项目(2018SJZX22)资助

摘　　要：针对北斗卫星下行通信受4G和WIFI信号带内干扰导致传输成功率低的情况,设计了基于增加传输次数来降低误码率的自动气象站报文北斗传输方案。首次提出并建成用于传输自动气象站报文的双北斗指挥机用户群,根据北斗用户机的传输能力设计专用的气象报文编码格式,利用冗余频度开展报文重发,实现单个时次报文的4次重复接收,稳定地保证了较高的传输成功率。方案同时实现了观测报文1min内到达预报员桌面,在稳定性和时效性上均取得了突破。To solve the problem of low transmission success rate caused by the internal disturbance of 4G and WIFI signals to the downward transmission of Beidou,this paper designs a message transmission project for Automatic Weather Stations(AWSs)based on Beidou to reduce the code error rate by increasing the transmission frequency.It promotes and establishes for the first time the Beidou dualcommander user group for transmitting the messages of AW Ss,designs a special encoding format for AWS messages based on the transmission ability of Beidou user machines,and utilizes redundant frequentness to resend the messages that can be repeatedly received for 4 times to guarantee a steady and high transmission success rate.Besides,the AWS messages can be used by forecasters in 1 m inute,showing a breakthrough in terms of stability and timeliness.

关 键 词：大气探测 自动气象站 数据传输 北斗短报文 

分 类 号：P413[天文地球—大气科学及气象学]