应用状态反馈和自适应技术,研究了一类一阶控制系数未知非线性系统有限时间镇定.基于Nussbaum增益方法,成功地构造了自适应状态反馈控制器,确保了闭环系统的全局稳定性,并且原系统的状态是有限时间稳定的(其严格证明是借助于著名的罗彼塔法则完成的).仿真算例验证了该方法的有效性.
In this paper, the finite time stabilization via state-feedback and adaptive technique was investigated for a class of firstorder nonlinear systems with unknown control direction. Using the Nussbaum gain method, an adaptive state-feedback controller is sueeessfillly constructed, which guarantees the global stabihty of the closed-loop system, and the global finite time stability of the original system state (This was rigorously proven with the help of the celebrated L'Hospital's Rule). A simulation example was provided to illustrate the effectiveness of the proposed approach.