基于某型飞行器卫星定位航迹修正算法的研究

Research on Satellite Positioning Track Correction Algorithm Based on a Certain Type of Aircraft

传统飞行器航向通道比例-积分-微分(PID)控制易受各种因素的干扰使飞行器偏离预定弹道,而卫星导航技术在航空航天的领域已十分成熟。因此本文将飞行器飞行过程中,通过卫星导航技术得到的位置信息闭环到航向控制通路中,形成对飞行器侧向位置的闭环控制。该方法通过开环控制与闭环控制相结合的方式,有效地解决了卫星导航定位不稳定等问题,可以有效减小飞行器弹道精度的有效控制。

The heading channel proportion-integration-differentiation(PID)control of a traditional aircraft is vulnerable to the interference of various factors,which will make the aircraft deviate from the intended trajectory,though the satellite navigation technology has been very mature in the field of aerospace.In order to form a closed-loop control for the lateral position of an aircraft,in this paper,the position information obtained by satellite navigation technology during the flight of the aircraft is closed-looped into the heading control path.The method combines openloop control and closed-loop control to effectively solve the problems of unstable satellite navigation positioning,and can effectively reduce the effective control of aircraft ballistic accuracy.