卫星制导炸弹控制回路中的自抗扰控制

针对卫星制导炸弹在实际应用中控制系统所面临的问题,提出了将自抗扰控制用于卫星制导炸弹控制回路中的控制方法,即利用扩张状态观测器对系统的干扰进行实时估计与补偿,将被控对象变成积分器串联型,进行非线性PD控制。分析及数值仿真结果表明,该控制方法具有较强的抗干扰能力,具有控制品质优良、精度高、算法简单等特点,是一种可应用于实际系统中的理想姿态控制方案。

Active Disturbance Rejection Control of Attitude Control for GPS-guided Bomb

This paper presents an active disturbance rejection control algorithm for GPS-guided bomb attitude control.A linear extended state observer(ESO) is proposed for on-line estimating and compensating the total dynamics,which lumps the internal dynamics and the external disturbance.The plant dynamics is reduced to a group of integrators with ESO,and nonlinear PD controller is used.The simulation results show that the control system designed can also have more excellent character,such as high robustness,high precision and fast dynamic response in condition of more measure errors and disturbance.Thus,it is an excellent control scheme which can be used to improve the control performance of GPS-guided bomb.