基于卫星短消息通信的大地测量信息传输技术

无线通信是大地测量内外业一体化生产中的瓶颈问题。首先介绍了大地测量信息传输系统的基本功能,给出了通信管理功能的基本结构,然后重点讨论了通信管理中的一些关键技术:用户终端与计算机控制程序之间的信息组织、利用CRC校验和多重确认进行误码控制、建立传输队列来防止信号失锁造成的信息拥塞。最后通过试验分析,验证了利用卫星短消息通信进行大地测量信息传输的可行性。

Geodetic Information Transfer Technique Based on Satellite Short Message

Wireless communication is the bottleneck of geodetic integrated work.This paper introduced the functions of geodetic information transfer system and the structure of communication manage module firstly.Some key techniques were discussed followed,such as communication protocol between user terminal and computer,Cyclic Redundancy Check(CRC) and multi-validation mechanism,data queue to prevent information congestion.At last,experimentation was presented to prove the feasibility of geodetic information transfer based on satellite short message.