无人机接力测控数据链设计  

Design of Relay TT&C System of UAV

作　　者：律会丽 李平敏 LYU Huili;LI Pingmin(Tianjin Zhongwei Aerospace Data System Technology Co.,Ltd.,Tianjin 300301,China)

机构地区：[1]天津航天中为数据系统科技有限公司,天津300301

出　　处：《电讯技术》2021年第8期939-944,共6页Telecommunication Engineering

摘　　要：针对电力巡检、油气管道巡线等长距离、跨省区、超视距巡检场景,提出了一种站间接力的无人机巡线数据链系统。系统在巡查线路沿线设置多个地面站,以码分多址(Code Division Multiple Access,CDMA)为基础,设计了一种跨站软切换算法,随着飞行巡检线路实现无人机控制权在地面站间的无缝软切换。对8个地面站的接力测控数据链的设计和测试表明,所提方案可实现地面站间的无缝切换,有效提高无人机测控范围。A relay telemetry,tracking and command(TT&C)system is proposed to solve the problem that line-of-sight unmanned aerial vehicle(UAV)TT&C communication link is difficult to meet the requirement of long-distance and over-the-horizon monitoring of the power line inspection,and oil and gas pipelines inspection.Based on code division multiple access(CDMA)technique,several ground control stations are built along the inspection line.By applying a soft handover algorithm,the system can implement a soft hand-off between ground stations according to the position of UAV.This paper focuses on the algorithm of the soft handover scheme,and designs the relay TT&C system of eight ground stations.The test results show that the system can realize soft hand-over between ground stations and improve the TT&C range of UAV effectively.

关 键 词：无人机 接力测控 无缝软切换 CDMA 超视距数据链 

分 类 号：TN925[电子电信—通信与信息系统]