| Colpitts电路中的双涡卷混沌寄生振荡分析 |
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| 引用本文： | 李春彪,包伯成,杨巧玲.Colpitts电路中的双涡卷混沌寄生振荡分析[J].西北师范大学学报,2011,47(2). |
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| 作者姓名： | 李春彪 包伯成 杨巧玲 |
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| 作者单位： | 江苏经贸职业技术学院工程技术学院;江苏经贸职业技术学院江苏省流通现代化传感网工程技术研究开发中心;常州技术师范学院电子信息工程学院; |
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| 基金项目： | 江苏省“青蓝工程”基金资助项目(苏教师〔2008〕30号); 江苏省博士后科研资助计划项目(1002004C) |
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| 摘 要： | 通过在Colpitts振荡器中引入二次反馈项,观察到了新奇的双涡卷吸引子.这个具有反馈项的混沌系统具有3个平衡点,产生不同于Lorenz和Colpitts系统的复杂吸引子.对系统的一些基本特性,如平衡点、稳定性、Lyapunov指数谱、分岔图、相轨与庞加莱截面等进行了详细的分析.
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| 关 键 词： | 双涡卷吸引子 Colpitts电路 Lyapunov指数谱 分岔图 |
Analysis of the 2-scroll chaotic parasitic oscillation existing in Colpitts circuit |
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| LI Chun-biao,BAO Bo-cheng,YANG Qiao-ling.Analysis of the 2-scroll chaotic parasitic oscillation existing in Colpitts circuit[J].Journal of Northwest Normal University Natural Science (Bimonthly),2011,47(2). |
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| Authors: | LI Chun-biao BAO Bo-cheng YANG Qiao-ling |
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| Institution: | LI Chun-biao1,2,BAO Bo-cheng3,YANG Qiao-ling1,2 (1.School of Engineering Technology,Jiangsu Institute of Economic and Trade Technology,Nanjing 210007,Jiangsu,China,2.Engineering Technology Research and Development Center of Jiangsu Circulation Modernization Sensor Network,3.School of Electrical and Information Engineering,Changzhou Teachers University of Technology,Changzhou 213001,China) |
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| Abstract: | A novel 2-scroll attractor is observed in Colpitts oscillator when introducing a nonlinear quadratic feedback controller.The new chaotic system with quadratic feedback term has three equilibria and can display a complicated Colpitts-unlike or Lorenz-unlike 2-scroll chaotic attractor,which induces more complex dynamical behaviors in the modified circuit.The detailed dynamical behaviors of the novel 2-scroll attractor are investigated,including equilibria,stability,Lyapunov exponent spectrum,bifurcation diagr... |
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| Keywords: | 2-scroll attractor Colpitts circuit Lyapunov exponent spectra bifurcation diagram |
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