质量矩导弹固定时间二阶滑模控制方法

针对三轴稳定的双滑块质量矩导弹，基于动态系统零点配置原理提出一种快速固定时间二阶滑模控制方法。首先建立具有完整耦合动力学特征的质量矩导弹姿态动力学模型；其次，基于典型动态系统进行零点配置原理分析和收敛时间估计；在此基础上，提出动态过程可调节的固定时间二阶滑模控制方法，并对系统收敛时间的上界进行估计；最后，针对质量矩导弹的仿真校验了设计方法的有效性。

Fixed Time Second Order Sliding Mode Control for Mass Moment Missiles

 A fast fixed-time second-order sliding mode control method is proposed for a three-axis stabilized double slider mass moment missile based on the principle of dynamic system zero placement. Firstly, the attitude dynamics model of the mass moment missile with complete coupling dynamics characteristics is established. Secondly, the zero placement principle and convergence time estimation are carried out based on the typical dynamic systems. On this basis, a fixed-time second-order sliding mode control method with an adjustable dynamic process is proposed, and the upper bound of the convergence time of the system is estimated. Finally, the simulation of the mass moment missile verifies the validity of the design method.