摘要
为了解决海流机海上作业的工况监测和海流机与岸基的远距离通信及数据传输困难等问题,选择将北斗卫星导航系统(BDS)应用到海流机在海上的定位和通信中.分析海流特点和海流机的几种常见工况.介绍基于北斗卫星导航系统-卫星无线电导航业务(BDS-RNSS)的海流机定位原理和BDS的短报文通信特点.将“位拼接-LZW”双重数据压缩应用到短报文通信系统中.设计一种适用于海流机通信的主控制系统并拟定海流机和岸上用户终端之间的通信方案,旨在提高通信效率和增大数据传输量.
In order to solve the problems of working condition monitoring of the ocean current machine and the difficulty of long-distance communication and data transmission between the ocean current machine and the shore,the BeiDou Navigation Satellite System(BDS)was chosen to be applied to the ocean current machine's positioning and communication in the sea.The characteristics of ocean currents and several common operating conditions of ocean current machines are analyzed.The positioning principle of ocean current machine based on BDS-RNSS and the short message communication characteristics of BDS are introduced.“Bit Splicing-LZW”double data compression is applied in the short message communication system.A main control system suitable for ocean current machine communication and draft a communication plan between ocean current machine and shore user terminal is designed,aiming to improve communication efficiency and increase data transmission volume.
作者
王永鼎
陈小锋
WANG Yongding;CHEN Xiaofeng(College of Engineering Science and Technology,Shanghai Ocean University,Shanghai 201306,China)
出处
《全球定位系统》
CSCD
2021年第1期105-111,共7页
Gnss World of China
基金
上海市科技兴农项目(沪农科攻字(2014)第6-3号)。
