一种评价无人机纵向飞行品质的简化分析方法

A Simplified Method for Evaluating UAV Longitudinal Flying Qualities

文中根据有人机飞行品质评价方法,针对无人机纵向飞行特性,提出了一种验证纵向飞行品质的简化方法。根据飞机的线性模型,将多输入多输出系统转化为多个单输入单输出系统进行分析,通过建立传感器模型代替飞行员。以SPAARO无人机模型为基础,分别选择不同的频率带宽的传感器模型和指令频率进行匹配,得出最优的系统模型。最后,利用3种不同的无人机模型进行仿真,根据飞机的响应曲线,每种飞机可根据自身适应特性,选择不同的传感器增益。

This paper is based on the evaluating method of piloted flying qualities,according to the vertical flight characteristics of the UAV,introducing a simplified method to verify the vertical flying qualities. Using the linear model of aircraft,a MIMO system is reduced to a SISO system for analysis,and the pilot is replaced by the sensor model. Based on the SPAARO UAV model,the sensor model with different frequency bandwidth and the command frequency were selected to match,and the optimal system model was obtained. Finally,three different UAV models are used to drawthe conclusion that different aircraft can select the corresponding sensor gain according to their own characteristics.