摘要
本文利用参数辨识观测器对一类非线性陀螺系统的的参数辨识问题进行了研究.首先基于非线性动力学理论,利用混沌吸引子,全局分岔图和Lyapunov指数谱准确的表征了系统的混沌行为.通过构造合适的参数辨识观测器,成功地实现了该陀螺系统的所有未知参数的辨识.数值仿真验证了所设计的参数辨识观测器的有效性.
The problem of parameter identification for a class of nonlinear gyros system base on identification observe is studied. The abundance dynamical behaviors of the system are presented by the chaotic attractor, global bifurcation graph and the Lyapunov exponent base on nonlinear dynamical theory. Moreover, the suitable parameter identification observers are designed for the system with fully unknown parameters. Numerical simulations show that the effectiveness and feasibility of the identification observes to identify the parameters.
出处
《四川大学学报(自然科学版)》
CAS
CSCD
北大核心
2010年第6期1351-1356,共6页
Journal of Sichuan University(Natural Science Edition)
基金
甘肃省自然科学基金(3ZS042-B25-049)