ANALOG CIRCUIT AND METHOD FOR FRACTIONAL-ORDER FOUR-SYSTEM AUTOMATIC SWITCHING CHAOTIC SYSTEM BASED ON LORENZ TYPE SYSTEM

摘要

Disclosed are an analog circuit and method for a fractional-order four-system automatic switching chaotic system based on a Lorenz type system, a method for realizing the analog circuit and the structure of the Lorenz type fractional-order four-system automatic switching chaotic system. The analog circuit consists of 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 voltage comparator U7 and an analog switch U6. The system of the present invention is more complex and more random than an un-switching fractional-order chaotic system and an automatic switching chaotic system consisting of two or three chaotic sub-systems, and therefore can be a new choice as a signal source in secure communication, and have a better application prospect in secure communication.