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Robust autopilot design for STT missiles with multiple disturbances using twisting control

机译:使用扭曲控制的多干扰STT导弹的鲁棒自动驾驶设计

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摘要

In this paper, a novel second-order sliding mode control (NSOSMC) scheme with finite time convergence is proposed for the autopilot design of skid-to-turn (STT) missiles considering coupling effects to track the desired maneuver commands. Firstly, the control system formulation is developed based on the mathematical model for nonlinear missile dynamics with system uncertainties and unknown multiple disturbances. Secondly, the NSOSMC scheme is developed by using a PID sliding mode surface with twisting control algorithm, which is to suppress the system uncertainties and unknown external disturbances, and to eliminate the chattering phenomenon. Then, the proposed NSOSMC law is proved to be finite time convergent to the origin. Finally, the effectiveness and robustness of the proposed NSOSMC scheme is verified through the numerical simulations with comparisons. (C) 2017 Elsevier Masson SAS. All rights reserved.
机译:本文提出了一种新颖的具有有限时间收敛性的二阶滑模控制(NSOSMC)方案,用于考虑转向效果的滑脱转(STT)导弹的自动驾驶设计。首先,基于具有系统不确定性和未知多重扰动的非线性导弹动力学数学模型,开发了控制系统公式。其次,通过采用PID滑模表面加扭转控制算法,开发出了NSOSMC方案,以抑制系统的不确定性和未知的外部干扰,消除颤振现象。然后,证明了所提出的NSOSMC定律是有限时间收敛于原点的。最后,通过数值模拟和比较,验证了所提出的NSOSMC方案的有效性和鲁棒性。 (C)2017 Elsevier Masson SAS。版权所有。

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