无人机指令生成器设计

如何将以时间、位置描述的期望航迹或战术机动转化为可以实时跟踪的以速度、姿态指令描述的期望机动轨迹,是无人机设计的难点之一.针对这一问题,提出了一种采用三自由度质点动力学飞机方程,通过建立机动动作规则库,利用机动动作设计指令生成器方法,将描述航迹的时间、位置信息或战术需求转化为无人作战飞机期望的油门、法向过载、航迹角、滚转角信息,直接作为轨迹跟踪回路的期望指令.在机动动作的设计过程中考虑了飞机的飞行性能以及飞行动态的影响,生成的期望控制指令合理可实现.仿真结果表明:该方程实时有效,生成的控制指令易于跟踪,可应用于无人机指令生成器设计.

Design of Command Generator for UCAV

It is an important problem how to effectively transform the information of time and attitude into aircraft''s expectation control command of velocity and attitude on condition of taking UCAV''s performance constrains into account. This paper presents a new method which apply maneuver movement matching planned path by establishing maneuver action database to create the expectation commands such as thrust brake gate, perpendicular load, flight path angle and flight path bank. The UCAV''s performance constrains are taken into consideration in the design of the method, so the created expectation commands are reasonable and easy to be realized. The results of simulation show that the method has a good real-time and the created command is easy to be followed.