基于遥测数据的无人机飞行包线估算方法研究

Study on UAV's flight envelope estimation method based on telemetry data

飞行包线对于无人机的飞行安全至关重要。为了建立更加完善的飞行包线,提出了一种基于遥测数据的气动参数辨识方法结合可达集理论的包线估计综合方法;基于动力学方程建立无人机的气动参数模型,利用辨识模型的参数解算不同高度下的飞行包线,再利用线性系统理论与可达集理论扩展计算不同飞行包线下的相关极限飞行参数;最后,基于某型无人机实际飞行中记录的遥测数据,解算了该无人机的飞行包线,验证了该方法的可行性和有效性。

The flight envelope is of primary importance to the UAV’s flight safety.To get more complete flight envelope,this paper puts forward a comprehensive method based on the telemetry data,combining aerodynamic parameter identification and reachability analysis.The aerodynamic parameter model of UAV is built on the basis of dynamic equation,and the flight envelopes at different heights are calculated by using the model parameters,and then the limit flight parameters in different flight envelopes are calculated by using the reachable analysis.At last,based on the telemetry data recorded in the actual flight of a UAV,this paper presents the flight envelope calculated by the comprehensive method and verifies the feasibility of the method.