摘要
为了解决基于单载波频域均衡(SC-FDE)高速数据链无人机测控系统的地空双向距离测量问题,提出了一种基于系统采样时钟量化的无人机测距方法,将机载/地面测距信息分别量化至机/地系统采样时钟的计时器,完成地空双向距离的测量。理论分析和地空链路测试平台实验结果表明,新方法在复杂多径环境下实现了地空双向距离测量,降低了测距分系统的设计复杂度,地空双向实际测距均值与等效自由空间传输延迟一致,且测距精度满足理论测距误差设计值。该测距方法在无人机测控系统中具有良好的应用前景。
To solve the problem of two-way ranging between unmanned aerial vehicle(UAV)and ground station(GS)based on single carrier frequency domain equalization(SC-FDE)high-speed data link,a ran-ging method based on system sampling clock quantization is proposed.The results of theroetical analysis and air-ground link platform experiment show that this method can measure range between UAV and GS in complex multi-path environment.It can also reduce the design complexity of the ranging system.The unidi-rectional range between UAV and GS is the same as the free space transfer delay.This ranging method has good prospects in UAV telemetry,tracking and command(TT&C)system.
作者
杨林超
黄华园
张玲
YANG Linchao;HUANG Huayuan;ZHANG Ling(Southwest China Institute of Electronic Technology,Chengdu 610036,China)
出处
《电讯技术》
北大核心
2018年第4期412-417,共6页
Telecommunication Engineering
