攻击型无人机鲁棒导引律研究  

A Robust Guidance Law of Attacking UAV(Unmanned Aerial Vehicle)

作　　者：杨俊鹏[1] 祝小平[1] 

机构地区：[1]西北工业大学,陕西西安710072

出　　处：《西北工业大学学报》2009年第6期796-800,共5页Journal of Northwestern Polytechnical University

摘　　要：文章研究了攻击型无人机鲁棒导引系统,采用对干扰和摄动具有自适应能力的滑动模态变结构控制方法设计了攻击型无人机滑模导引规律。针对用于消除颤振的伪滑动模态不能实现精确跟踪的缺陷,对滑模导引规律中颤振消除进行了优化设计,引入系统运动状态轨迹接近角变量,使消除颤振的伪滑动模态边界层宽度随着系统状态到达滑动模态而逐渐减小为零,从而达到了既能消除颤振又能实现精确跟踪的设计目标。通过仿真验证了该导引规律具有攻击弹道平缓、抗目标机动扰动能力强、鲁棒性好、制导精度高的优点。Aim.The introduction of the full paper points out that the pseudo sliding mode variable structure control adopted by Refs.2 through 5 leads to what we believe to be insufficient tracking precision if enough robustness is ensured.We propose what is,in our opinion,a better guidance law.Section 2 of the full paper discusses the design of the UAV guidance law with the modified pseudo sliding mode variable structure control.With this modification,as explained in subsection 2.2,the requirements on the robustness ...

关 键 词：无人机 滑模变结构控制 伪滑动模态 导引律 

分 类 号：V249.121[航空宇航科学与技术—飞行器设计]