Operator-based robust control for nonlinear uncertain systems with input nonlinearity

In this paper, robust control for nonlinear uncertain systems with input nonlinearity is considered by using operator based robust right coprime factorization approach. In details, an operator based control design structure is proposed for nonlinear uncertain system with input nonlinearity. Based on the proposed design scheme, the designed system is robustly stable. Moreover, the desired output tracking performance can be realized simultaneously. Finally, a simulation example on a nonlinear plant preceded by unknown backlash is given to show the design procedure of the proposed method.