A CMOS Analog Chaotic Oscillator for Signal Encryption
A CMOS Analog Chaotic Oscillator for Signal Encryption
复制标题
用于信号加密的 CMOS 模拟混沌振荡器
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
Á. Rodríguez
中科院分区：
文献类型：
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作者：
Manuel Delgado;Á. Rodríguez
本文提出了一种基于非线性信号处理概念的模拟集成电路的创新应用。我们报告了混沌连续时间非线性动态系统的第一个整体实现。它对应于称为 Chua 方程的三阶微分方程，并已在 2.4 µm CMOS 技术中使用非线性 gm-C 技术实现。测量证明了设计能够生成可控连续时间混沌信号的模拟集成电路的可能性。这为信号处理系统中模拟电路的开发开辟了新的前景。特别是，我们展示了如何利用本文报告的两个振荡器之间的同步来解决信号加密问题。
This paper presents an innovative application for analog integrated circuits, based on nonlinear signal processing concepts. We report the first monolithic realization of a chaotic continuous-time nonlinear dynamic system. It corresponds to a third order differential equation known as the Chua's equation, and has been implemented using nonlinear gm-C techniques in a 2.4¿m CMOS technology. Measurements demonstrate the possibility to engineer analog integrated circuits capable of generating controllable continuous-time chaotic signals. This opens new vistas for the exploitation of analog circuits in signal processing systems. In particular we show how to exploit the synchronization between two of the herein reported oscillators for the issue of signal encryption.