| 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。 |
| 关键词: 无人机 接力测控 无缝软切换 CDMA 超视距数据链 |
| DOI： |
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| 基金项目: |
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| Design of relay TT&C system of UAV |
| LYU Huili,LI Pingmin |
| (Tianjin Zhongwei Aerospace Data System Technology Co.,Ltd.,Tianjin 300301,China) |
| Abstract: |
| 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. |
| Key words: UAV relay TT&C;soft handoff CDMA over-the-horizon data link |
