摘要
无人机级联中继通信是解决远距离无线通信的一种重要技术手段。针对用户节点运动情况下的点对点无人机级联中继通信系统中的最佳航迹规划问题,提出基于通信链路遍历容量最大化准则的级联无人机航迹联合优化方法与分步优化方法,在FM-EM算法的基础上,研究了无人机级联中继通信系统中断概率的计算方法。实验结果表明:级联无人机航迹联合优化方法与分步优化方法性能基本一致,最大转弯角有利于提升系统的中断性能。
UAV cascaded relay communication is an important technical scheme for the long-distance point-to-point wireless communication.Aiming at UAV path planning problem in UAV cascaded relay communication system with a mobile user node,a joint optimization and a stepwise optimization path planning method are proposed based on the maximization of ergodic capacity criterion.And the outage probability of the UAV cascaded relay communication system is derived by using FM-EM algorithm.Simulation results demonstrate the accuracy of the proposed path planning methods.Research indicates that the stepwise optimization path planning method achieves the same performance as the joint optimization path planning method.
作者
刘海涛
方晓钰
顾新宇
李冬霞
LIU Haitao;FANG Xiaoyu;GU Xinyu;LI Dongxia(Intelligent Signal and Image Processing Key Lab of Tianjin,CAUC,Tianjin 300300,China)
出处
《中国民航大学学报》
CAS
2020年第2期1-6,共6页
Journal of Civil Aviation University of China
基金
国家自然科学基金项目(U1633108)。
