| 摘要: |
| 将控制器G=k(y-x)施加到一类混沌电子线路系统ẋ=a(z-x),ẏ=bx-xz,ż=xy-cy-4z的第一个方程的右侧,得到系统参数的准确表达式a=-k(y-x)/(z-x),b=z,c=x-4z/y,从而提出一种识别混沌系统参数的线性反馈控制法,并进行计算机仿真实验。在系统参数保持不变和系统部分参数发生阶跃或周期性变化情况下,该方法可以快速有效地识别系统参数。 |
| 关键词: 混沌 参数识别 控制 |
| DOI： |
| 投稿时间：2007-06-20修订日期：2007-08-27 |
| 基金项目:国家自然科学基金项目(No10572056)资助 |
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| Parameters Identification of One Class of Chaotic Electric Circuit Using Linear Feedback |
|
DENG Xue-ming1, MA Jun2
|
| (1.School of Science, Zhejiang University of Science and Technology, Hangzhou, Zhejiang, 310023, China;2.School of Sciences, Lanzhou University of Technology, Lanzhou, Gansu, 730050, China) |
| Abstract: |
| The controller G=k (y-x)is imposed on the right side of the first formula in the chaotic electric circuit described by ẋ=a (z-x), ẏ=bx-xz, ż=xy-cy-4z under appropriate parameters, and the parameter observer can be defined as a=-k (y-x)/(z-x), b=z, c=x-4z/y.Therefore, a class of linear feedback scheme is proposed to identify the unknown parameter in chaotic system and the numerical simulation is investigated.It is found that the parameter can be identified successfully when the parameter is invariable and/or the some parameters is changed as a jump or a periodical function. |
| Key words: chaos parameter identification control |
