一种GoTa移频终端的设计方案  

A Design of Frequency Shifting GoTa Terminal

作　　者：吕国栋[1] 白灵[1] 宋滔[1] 

机构地区：[1]中国电子科技集团公司第30研究所,四川成都610041

出　　处：《通信技术》2013年第8期136-139,共4页Communications Technology

摘　　要：GoTa数字集群通信系统是应用范围最广和国际化程度最高的国产数字集群系统。将GoTa系统移频应用,使其能够突破频段限制,满足更多用户的集群调度通信需求。移频终端是GoTa集群通信系统移频应用的重要设备,主要由主控模块、移频模块、GoTa模块等构成。介绍了GoTa系统移频应用的工作原理,提出了一种GoTa移频终端解决方案。并给出了移频模块、接收待机等技术难点的解决方法。样机通过系统测试,实现非标准频段下的GoTa集群功能。GoTa（Global Open Trunking Architecture） is a typical domestic digital trunking system with independent intellectual property right and also a well-known system all over the world.And it is widely used and has a huge amount of users.By breaking through the limitation of working frequency and expanding the working frequency to a broad band,the frequency shifting application of GoTa could be done,thus to meet the demands of more users.The terminal of frequency shifting GoTa system,as a very important equipment,is mainly composed of central control module,frequency shifting RF module and basic GoTa module.This paper,based on the working principle of GoTa frequency shifting application,proposes a novel solution for the design of frequency shifting terminal,gives a detailed analysis of the key issues,including the frequency shifting RF module and the power management of receiver.Finally,the experiment on prototype frequency shifting GoTa system indicates that the scheme is feasible and effective and that all the functions of frequency shifting GoTa terminal could work well.

关 键 词：GOTA 移频 终端 

分 类 号：TN924.3[电子电信—通信与信息系统]