METHOD AND ANALOG CIRCUIT FOR IMPLEMENTING AUTOMATIC SWITCHING OF SEVEN CHEN TYPE SYSTEMS FOR CHAOTIC SYSTEM

摘要

A method and an analog circuit for implementing automatic switching of seven Chen type systems for a chaotic system. The chaotic circuit for implementing automatic switching of seven Chen type systems is formed by an operational amplifier U1, an operational amplifier U2, an operational amplifier U3, an operational amplifier U5, an operational amplifier U8, a multiplier U4, a multiplier U9, a multiplier U10, a multiplier U11, a multiplier U12, a multiplier U13, a voltage comparator U7 and an analogue switch U6. In the present invention, by means of the analog circuit, the method and the analog circuit for implementing automatic switching of seven Chen type systems for the chaotic system are implemented, the seven sub-systems have different balance points, so that the automatic switching of the seven sub-systems with the different balance points is more random than that of sub-systems with same balance points, and generated digit sequences are more applicable to chaos-based secret communications and have a better application prospect in the chaos-based secret communications.