| 峰峰值自适应延迟反馈混沌控制算法的改进 |
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| 引用本文： | 张勇,闫军,杜亚江,刘凤娟.峰峰值自适应延迟反馈混沌控制算法的改进[J].兰州铁道学院学报,2009,28(4):147-150. |
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| 作者姓名： | 张勇 闫军 杜亚江 刘凤娟 |
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| 作者单位： | 兰州交通大学机电技术研究所,甘肃兰州,730070 |
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| 基金项目： | 英国皇家学会壬宽诚教育蕈金 |
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| 摘 要： | 研究了混沌控制理论的时滞反馈控制算法及在该算法基础上改进的峰峰值自适应延迟反馈控制算法,得出以上算法在测量受到噪音干扰情况下,信号的峰值很难准确确定,而且控制稳定后,所得到的周期轨道不能很好重叠等不足,本文提出一种修正的峰峰值自适应延迟反馈算法,该算法通过事先给定延迟时间的变化阈值,来消除在自适应调节延迟时间过程中因测量误差带来的延迟时间的小幅波动,使轨道达到稳定的时间减小.最后使用该方法对自治Rossler系统进行控制,并用Matlab/Simulink工具箱对该系统进行了仿真验证.
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| 关 键 词： | 混沌控制 延迟反馈 峰峰值自适应 算法改进 |
Improved Algorithm of Chaotic Control Based on Peak-peak Adaptive Delay Feedback |
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| ZHANG Yong,YAN Jun,DU Ya-jiang,LIU Feng-juan.Improved Algorithm of Chaotic Control Based on Peak-peak Adaptive Delay Feedback[J].Journal of Lanzhou Railway University,2009,28(4):147-150. |
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| Authors: | ZHANG Yong YAN Jun DU Ya-jiang LIU Feng-juan |
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| Institution: | (Meehatronie Technology Institute, Lanzhou Jiaotong University, Lanzhou 730070 ,China) |
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| Abstract: | The time-delay feedback control algorithm and the improvement peak-peak adaptive delay-time feedback control algorithm in the chaotic control theory are investigated. The results show that the maxi- mum of signal is difficult to accurately determine when measurement is interfered by noise, and overlap of periodic orbits can not be good after stability. An amending maximum adaptive time delay feedback control method is propsed, inhibiting slight fluctuation caused by measurement error in the process of adjusting delay-time adaptively by imposing fluctuating threshold of the delay-time and shortening the time which chaotic systems is stabilized to the target orbit. Finally, the autonomous Rossler system is controlled with above method,and simulations have been done to demonstrate the validity through Matlab/Simulink toolbox. |
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| Keywords: | chaotic control time-delay feedback peak-peak value adaption improved algorithm |
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