利用光电振荡器产生宽带混沌
Broadband chaos generated by an opto-electronic oscillator
摘要：
我们研究了一个具有平坦、宽功率谱的高速混沌光电子延时振荡器。混沌状态与线性稳定的固定点共存，当受到有限幅值扰动时，初始时通过超快脉冲的周期性训练失去稳定性。我们得到一个近似的地图，捕捉观察到的不稳定性做得很好。该振荡器为时滞动力系统的基础研究提供了一种简单的装置，并可用作超宽带传感器网络的构建模块。
英文摘要：
We study an opto-electronic time-delay oscillator that displays high-speed chaotic behavior with a flat, broad power spectrum. The chaotic state coexists with a linearly-stable fixed point, which, when subjected to a finite-amplitude perturbation, loses stability initially via a periodic train of ultrafast pulses. We derive an approximate map that does an excellent job of capturing the observed instability. The oscillator provides a simple device for fundamental studies of time-delay dynamical systems and can be used as a building block for ultra-wide-band sensor networks.
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