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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 drone group can be long-distance target information back to the control station through the relay link. When the target movement is too far away from the monitoring station and the number of UAVs used is limited, communication between UAVs can not be guaranteed, resulting in the information being unable to be transmitted back. In order to solve this problem, an improved SF algorithm is proposed. The algorithm divides the UAV into different types of nodes and uses the link holding time as a criterion to evaluate the stability of the core link. The algorithm changes the motion of each node in real time, Way to transmit the target information. The simulation results show that the proposed algorithm can provide an effective scheme for the target information return under the above conditions, and the feasibility is verified. Meanwhile, it has better performance than the SF algorithm in terms of average end-to-end delay and successful packet transmission rate.