Key Techniques Research on UAV Data Link

摘要：

　　Considering the environments and requirements of the UAV data link,this paper presents an adaptive information transmission method.When transmitting the remote control command data,spectrum spread system is used to improve reliability of the data link.When transmitting the high rate information such as videos and images,a three-processing-channel optimum strategy is used to improve the reliability in different channel conditions.Channel 1 is based on Gardner timing recovery and MCMA equalizer,Channel 2 is based on spread spectrum code recovery and MCMA equalizer,Channel 3 is based on Gardner timing recovery and carrier recovery.The strategy computes the confidence level of each process channel and chooses the best one as the output.Besides,the typical channel which the UAV encountered is analyzed and modeled.Experiments show that this design can achieve good performance in complex environments.

关键词： data link Unmanned Aerial Vehicle (UAV) complex environments

作者: Jinxi Li Yongfei Ding Zheng Fang

作者单位: China National Aeronautical Radio Electronics Research Institute,Shanghai,200241,China

会议类型: 国际会议

会议名称: 2014 Asia-Pacific International Symposium on Aerospace Technology(2014亚太航空航天技术学术会议)

会议地点: 上海

会议语种:英文

页码: 1-7

在线出版日期: 2014-09-24（万方平台首次上网日期，不代表论文的发表时间）