一个混沌电路及其实验结果

A new chaotic circuit and its experimental results

给出了仅仅由几个运算放大器、电容和电阻组成的一个新混沌电路.对混沌电路的状态方程进行计算表明,该系统具有一个正的李雅谱诺夫指数,数值计算得到了此系统的混沌吸引子.同时,对此混沌系统进行了电路实现,得到了混沌电路的吸引子,结果表明,实验结果与数值计算结果完全符合.最后,对该混沌电路中的两个可调电阻的变化对混沌电路的影响进行了研究,结果表明可调电阻在一定范围内变化时,电路仍然保持有基本相同的混沌输出.

This paper reports a new chaotic circuit, which consists of only a few OpAmps, capacitors, and resistors. The chaotic attractor obtained via computer simulation, has one positive Lyapunov exponent. To supplement the computer simulation, a physical circuit implementation is designed. Some experimental results are given.