摘要
当前陆地通信系统主要是通过通信基站作为信号中继站,由若干通信基站相连接,形成巨大的信号覆盖区域。陆地通信系统建设成熟最大的因素在于陆地的相对稳定性。所以,稳定性非常差的海洋就导致了海上通信系统建设的难度异常高,而海洋范围占据地球的三分之二以上,所以,如果能在海洋中建设技术成熟的通信系统,那么对于全球的通信网络形成将会有里程碑式的意义。当前海洋通信主要采用的是浮筏通信系统,中继方式采用的是微波中继,但微波通信有很大的缺陷,就是传输距离近,仅仅能覆盖以浮筏为中心,直径70km的区域,难以满足发展越来越快的远海通信要求。而卫星通信系统并没有距离限制,所以,如果能将卫星的地面通信系统装到浮筏上,那么使通信突破距离的限制则将变成现实,这对于提高海上通信系统的稳定性有极大的帮助。
The current terrestrial communication system is mainly used as signal relay station through communication base station,which is connected by several communication base stations to form a huge signal coverage area.The biggest factor of land communication system maturity is the relative stability of land.Therefore,the very poor stability of the ocean leads to the extremely high difficulty in the construction of maritime communication system,and the ocean area occupies more than two-thirds of the earth,so if the construction of mature communication system in the ocean,then the formation of global communication network will have a landmark significance.At present,floating raft communication system is mainly adopted in marine communication,and microwave relay is adopted in relay mode.However,microwave communication has a great defect,that is,the transmission distance is close,which can only cover the area with a diameter of 70km centered on floating raft,it is difficult to meet the requirements of offshore communication which is developing faster and faster.However,the satellite communication system has no distance limit,so if the satellite ground communication system can be installed on the raft,then the communication breakthrough distance limit will become a reality,which will be of great help to improve the stability of the maritime communication system.
作者
李王辉
白钢华
LI Wanghui;BAI Ganghua(Hebi Polytechnic,Hebi 458030,China)
出处
《现代信息科技》
2019年第17期61-62,66,共3页
Modern Information Technology
关键词
动中通
浮筏通信
自动跟踪
communication in moving
pontoon communication
automatic tracking
