一类带有非谐波扰动的随机系统的抗干扰控制

Anti-disturbance Control of a Class of Stochastic Systems with Non-harmonic Disturbances

研究了一类带有多源干扰的随机系统,干扰包括非线性外生系统产生的非谐波干扰和白噪声.为了估计带有非线性动力的干扰,设计了一类随机非线性干扰观测器,并提出了一类基于非线性干扰观测器的干扰抵消方法,保证了复合闭环系统是依均方渐近有界的.最后通过仿真实例验证了本文方法的可行性和有效性.

A class of stochastic systems with multiple disturbances was studied,and the disturbances includes white noises and non-harmonic disturbances by a nonlinear exogenous system. In order to estimate the disturbance with nonlinear dynamics,a stochastic nonlinear disturbance observer was proposed,and a class of interference cancellation method based on the nonlinear observer was proposed,which can ensures that the composite closed-loop system is asymptotically bounded in mean square. Finally,a simulation example was given to demonstrate the feasibility and effectiveness of the proposed scheme.