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建立了无人机系统模型,根据通信数据链存在时延、无人机飞行员不能直接感受到无人机的过载信息等特点,参照有人驾驶飞机飞行品质准则,提出了遥控模式下无人机系统纵向飞行品质的评定方法.对某算例无人机系统的纵向短周期飞行品质及驾驶员诱发振荡(PIO,Pilot-induced Oscillations)趋势进行了评定及分析.结果表明:通信数据链对无人机系统的短周期频率、阻尼等特性的影响较小;但是,无人机飞行员在地面控制站遥控操纵无人机时,通信数据链时延会增加无人机系统的延迟时间,导致闭环操纵的短周期飞行品质发生降级,并具有PIO倾向;为避免发生PIO,应避免无人机在遥控模式下执行快速机动飞行任务.
The UAV system model is established. According to the delay of the communication data link, the UAV pilots can not directly sense the overload information of the UAV. According to the flight quality guidelines of the Pilot, the UAV system Longitudinal short-period flight quality and Pilot-induced Oscillations (PIO-PIO) are evaluated and analyzed in an example UAV system.The results show that the communication data link is unmanned However, when a drone pilot manipulates a drone remotely at a ground control station, the delay of the communication data link increases the delay time of the drone system, resulting in closed-loop manipulations Of the short-term flight quality downgrade, and has a PIO tendency; to avoid the occurrence of PIO, should avoid the UAV in the remote control mode to perform fast maneuver missions.