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逆系统的稳定性混沌现象与控制
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作者 李东海 苗建明 王守杰 《电子技术应用》 北大核心 1998年第2期4-6,共3页
讨论非线性控制系统设计方法在工程应用中的两个重要问题,预期动态特性的选择和奇点情况的处理,然后提出了逆系统不稳定时设计非线性控制系统的方法,并对一种典型的混沌现象控制进行了研究。
关键词 非线性控制 逆系统 稳定性 混沌现象控制
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CHAOS ANALYSIS AND CONTROL FOR A CLASS OF SIR EPIDEMIC MODEL WITH SEASONAL FLUCTUATION
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作者 YI ZHANG QINGLING ZHANG +1 位作者 FUZHEN ZHANG FENGLAN BAI 《International Journal of Biomathematics》 2013年第1期41-51,共11页
In this paper, the problems of chaos and chaos control for a class of susceptible-infected- removed (SIR) epidemic model with seasonal fluctuation are investigated. The season- ality in outbreak is natural among inf... In this paper, the problems of chaos and chaos control for a class of susceptible-infected- removed (SIR) epidemic model with seasonal fluctuation are investigated. The season- ality in outbreak is natural among infectious diseases, as the common influenza, A type H1N1 influenza and so on. It is shown that there exist chaotic phenomena in the epidemic model. Furthermore, the tracking control method is used to control chaotic motions in the epidemic model. A feedback controller is designed to achieve tracking of an ideal out- put. Thus, the density of infected individuals can converge to zero, in other words, thedisease can be disappeared. Finally, numerical simulations illustrate that the controller is effective. 展开更多
关键词 Epidemic model differential-algebraic system seasonal fluctuation CHAOS tracking control.
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