一类带死区输入的非线性不确定系统滑模自适应控制

研究一类参数不确定和带有未知死区的非线性系统滑模自适应控制问题。将死区分解为两部分，被控系统中有两类不确定性的系统参数，一类是常值的未知系统参数；另一类是时变的未知系统参数和部分未知的死区。采用滑模控制和自适应控制相结合的方式，第一类不确定性可以由自适应控制来处理，而第二类不确定性可以由滑模控制来处理，即滑模自适应控制器。为了消除滑模控制所带来的抖振，引入边界层。采用’Lyapunov函数证明了系统的稳定性。仿真实验表明方法的可行性。

Sliding-mode Adaptive Control for a Class of Uncertain Nonlinear Systems with Input Dead-zone

A method is presented to design sliding mode control and adaptive control in the presence of nonlinear systems with parameter uncertainties and unknown dead-zone.Unknown dead-zone is separated into two parts.There are two kinds of parameter uncertainties in the nonlinear system concerned in this paper.The first are the constant parameters which are unknown;the second are the time-varying parameters which are unknown and part of the unknown dead-zone.The controller is combined sliding mode controller with ad...