摘要
针对无人机地空数据传输过程中的信号衰落问题,通过对多种抗衰落技术方法适用性的分析,提出了自动请求重传(Automatic Repeat reQuest,ARQ)断链数据重传技术方案,分析研究了方案的工作机理、传输流程和关键参数设置要点,实际验证了在不明显增加系统设备量和成本的情况下,ARQ断链数据重传方案可显著提高无人机地空数据传输系统的通信可用度。
Aiming at signal fading in ground-to-air data-link,a ARQ method in broken data-link is proposed based on availability analysis of multiple anti-fading techniques.The operating principle,work flow and key parameters preferences are analyzed.It is proved that the method can improve the availability of ground-to-air data-link system obviously without increasing equipment and cost of system.
出处
《无线电工程》
2014年第4期32-36,共5页
Radio Engineering
关键词
无人机
可用度
信号衰落
断链重传
ARQ
UAV
availability
signal fading
ARQ
ARQ in broken data-link
