【作者】 张晨光； 张高飞； 陈大融；

【Author】 ZHANG Chen-guang ZHANG Gao-fei CHEN Da-rong Department of Precision Instruments and Methodology,Tsinghua University,Beijing 100084,China.

【机构】 清华大学 精密仪器与机械学系；

【摘要】 基于扩张状态观测器(ESO)．设计了一种对未知目标机动具有较强鲁棒性的制导律．运用 ESO 对系统非线性部分、通道间耦合项以及目标机动加速度的总和进行准确估计,并在反馈设计中给子动态补偿,实现了动态反馈线性化和解耦控制．仿真结果表明,该制导律能有效抑制视线角速度的波动,保证导弹命中目标．更多还原

【Abstract】 Based on the extended state observer(ESO),a robust guidance law for intercepting maneuver target with unknown acceleration is proposed.By using ESO,the total dynamics including internal nonlinear dynamics,coupling terms and unknown target acceleration are accurately estimated and dynamically compensated in feedback,by which dynamic feedback linearization and decoupling control are realized.The numerical simulations show that the guidance law can effectively attenuate chattering of the line-of-sight rate between missile and target and ensure guidance accuracy.更多还原