多无人机远程动目标跟踪的信息传输算法

Information delivery algorithm for UAVs tracking remote moving target

轻型无人机群可将远距离目标信息通过中继链路传回测控站。在目标运动距测控站过远以及无人机使用数量受限的情况下,无人机之间通信无法保障,导致信息无法传回。针对该问题,提出改进的SF算法,该算法将无人机群划分为不同类型的节点,并将链路保持时间作为评价核心链路稳定性的标准,实时地改变各节点运动状态,以接力的方式来传输目标信息。仿真结果表明,提出的算法能够提供在上述情况下目标信息回传的有效方案,可行性得到验证,同时它在平均端到端延时、数据包成功传输率方面性能均优于SF算法。

Light unmanned aerial vehicles( UAVs) could transmit the target information to the measuring and controlling station through relay link. When the target moved too far away from the measuring and controlling station and the number of UAVs was limited,the communication was not possible among the UAVs,resulting in impossible of information delivery. Aiming at this problem,this paper proposed enhanced store-and-forward algorithm which divided the UAVs into different types of nodes,and making the hold time of link evaluate the stability of key link,changing the motion state of some nodes in time,delivering the target information by way of relay. The simulation results show that the proposed algorithm can provide effective solutions of target information passing back in above-mentioned situation,and its feasibility has been proved,at the same time,its performance is superior to store-and-forward algorithm in terms of average end-to-end delay and data packet successfully delivery ratio.