改进型文氏桥混沌振荡器：建模、分析 与实验

通过引入二极管—电感并联网络实现了一种改进型文氏桥混沌振荡器。借助于二极管含寄生电容的分段线性模型，有效解决了该混沌电路的动力学建模问题。基于系统模型，研究了系统的平衡点及其稳定性，利用数值仿真和硬件实验手段，揭示并验证了随系统参数变化的动力学行为。结果表明，新提出的改进型文氏桥混沌振荡器有着简单的电路结构，存在混沌和周期等非线性动力学行为。

Improved Wien-bridge chaotic oscillator: modeling, analysis and experiment

An improved Wien-bridge chaotic oscillator is implemented by introducing a parallel network of diode-inductor in this paper. By means of piecewise linear model of the diode with a parasitic capacitor, the problem of dynamical modeling of the chaotic circuit is effectively solved. Based on the system model, the system equilibrium point and its stability are discussed, and dynamical behaviors with the variations of the system parameters are revealed and verified by using the methods of numerical simulations and hardware experiments. The results indicate that the newly proposed improved Wien-bridge chaotic oscillator with simple circuit structure exhibits the nonlinear dynamical behaviors of chaos and period.