Autopilot design for missile controlled by lateral thrust/aero force using combined optimal/classical approach
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摘要: 将最优控制与经典控制中的频域分析综合起来应用,设计了直接力/气动力复合控制自动驾驶仪.应用最优控制理论推导出自动驾驶仪的结构,并确定其增益系数,经典控制中的频域约束用于限制目标函数中的权系数矩阵的选取,以保证系统具有一定的鲁棒性.仿真结果与传统设计方法相比较,说明了应用本方法设计出的自动驾驶仪使系统响应速度更快,但超调略变大,同时系统也具有一定的鲁棒性.Abstract: To design the autopilot of the missile controlled by both lateral thrust and aerodynamic force, an approach utilizing the combination of optimal control and the frequency analysis in classic control was proposed. The autopilot structure and the gain values were obtained according to optimal control, and the frequency analysis was used to determine the weighting parameters in objective function, to make sure the robustness of the system. Then the simulation results were compared with the traditional method obtained, it shows that the system response becomes faster and a litter more overshoot appears when using the autopilot bought out, the robustness of the system is also indicated.
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Key words:
- optimal control /
- frequency domain analysis /
- combined control autopilot
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[1] Chadwick W R, Augmentation of high-altitude maneuver performance of a tail-controlled missile using lateral thrust .ADA328973, 1995 [2] Schroeder W K, Liu K. An appropriate application of fuzzy logic: a missile autopilot for dual control implementation Proceedings of the 1994 IEEE International Symposium on Intelligent Control. 1994:93-98 [3] Hirokawa R, Sato K. Autopilot design for a missile with reaction-jet using coefficient diagram method . AIAA-2001-4162,2001 [4] 程凤舟,拦截战术弹道导弹末段导引和复合控制研究 . 西安:西北工业大学航天工程学院,2002 Cheng Fengzhou, Studies of guidance and combined control in terminal phase when intercepting tactical ballistic missile . Xi-an:Collego of Astronautics,Northwestern Polytechnical University,2002(in Chinese) [5] Nesline William F, Wells Brian H, Paul Z. Combined optimal/classical approach to robust missile autopilot design[J]. Journal of Guidance and Control, 1979, 4(3):316-322 [6] Nesline William F, Paul Z. Why modern controllers can go unstable in practice[J]. Journal of Guidance, Control and Dynamics, 1984, 7(4):495-500 [7] Mracek Curtis P, Ridgely Brett D. Missile longitudinal autopilots: connections between optimal control and classical topologies . AIAA 2005-6381, 2005 [8] Mracek Curtis P, Ridgely Brett D. Missile longitudinal autopilots: comparison of multiple three loop topologies . AIAA 2005-6380, 2005 -
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