南京理工大学学报（自然科学版）2012，Vol.36Issue(5)：835-839,845,6.
低空掠海飞行拖靶自抗扰高度控制律设计
Design of Active Disturbances Rejection Control Law of Low Altitude Sea-skimming Tow Target
方晓星 1王勇 1王英勋2
作者信息
- 1. 北京航空航天大学无人驾驶飞行器设计研究所,北京100191
- 2. 中国航空工业集团公司重大项目管理部,北京100022
- 折叠
摘要
Abstract
To solve the problems that the modeling error and the internal and external disturbances of the low altitude sea-skimming tow target are great, an altitude control scheme based on the active disturbance rejection control technique is proposed. The contradiction of over-control and rapidity is harmonized by arranging the transient process,and the feedback of differential signal is achieved by track differentiator extracting the differential error signal. A nonlinear feedback method is used to improve the control efficiency avoid using integrator. Finally,the un-modeled dynamics and unknown disturbances in the system are estimated and compensated by the extended-state observer. The simulation results show that the control system has good dynamic capability, stable precision and strong robustness when being imported several kinds of disturbances.关键词
拖靶/自抗扰控制/跟踪微分器/非线性反馈/扩张状态观测器Key words
tow targets/ active disturbance rejection control/ track differentiators/ nonlinear feedback/extended-state observers分类
航空航天引用本文复制引用
方晓星,王勇,王英勋..低空掠海飞行拖靶自抗扰高度控制律设计[J].南京理工大学学报（自然科学版）,2012,36(5):835-839,845,6.
