转发系统在北斗导航领域中的应用  

Applications of the Repeating System in the Field of Beidou Navigation System

作　　者：张凤林 Zhang Fenglin(Beijing HDCX Technology Co.,Ltd,Beijing 100176)

机构地区：[1]北京航电创芯科技有限公司,北京100176

出　　处：《北斗与空间信息应用技术》2024年第3期17-21,共5页

摘　　要：文章对转发系统在北斗终端研制过程中的应用作了较全面的介绍。常规转发系统由室外天线、转发器主机、室内天线、分路器、射频电缆等组成,用于卫星与室内终端的通信定位。首次提出的保真转发系统是给北斗终端提供一个与室外相同的信号环境,包括信噪比和信号强度。无源转发系统由高增益无源天线、低损耗射频电缆组成,直接与终端连接,尤其适合RDSS卫星终端的测试。对于天线与终端一体机,除了常规转发系统外,还首次提出了无线终端微型测试盒和便携式屏蔽暗箱的概念,采用封闭式转发测试的新方法,室外天线既可以是有源天线,也可以是无源天线。作为欺骗式干扰源,转发系统是欺骗军码接收机的主要手段。A comprehensive introduction to the application of the repeating system in the development process of Beidou terminals is provided.The conventional repeating system consists of outdoor antennas,transponder hosts,indoor antennas,splitters,and low loss cables,which are used for communication and positioning between satellites and indoor terminals.The fi delity-preserving repeating system,proposed for the fi rst time,provides a signal environment for Beidou terminals that is identical to the outdoor environment,including signal-to-noise ratio and signal strength.The passive repeating system,composed of high-gain passive antennas and low-loss cables,connects directly to the terminal and is particularly suitable for testing RDSS satellite terminals.For antenna-terminal integrated devices,in addition to the conventional repeating system,the concepts of wireless terminal miniature test box and portable shielding chambers are proposed for the fi rst time,employing a new method of shielding repeating testing.The outdoor antenna can be either active or passive.As a spoof interference source,the repeating system is a primary means of deceiving military code receivers.

关 键 词：转发器 转发系统 自适应抗干扰 无线终端微型测试盒 便携式暗箱 欺骗干扰 

分 类 号：TN9[电子电信—信息与通信工程]