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Method for automatically switching fractional-order chaotic system by four systems based on Lu-type system and analog circuit

A chaotic system and automatic switching technology, applied in the transmission system, digital transmission system, modulated carrier system, etc., can solve the problem of less chaotic circuits

Active Publication Date: 2013-01-30
STATE GRID CORP OF CHINA +2
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Problems solved by technology

[0002] At present, there are many ways to use analog circuits to realize integer-order and fractional-order chaotic systems and circuits, but there are relatively few methods for using analog circuits to realize automatic switching chaotic circuits, and the disclosed automatic switching chaotic systems and circuits are integer order 2 There is no disclosure of a method and circuit for automatic switching of multiple sub-chaotic systems. The present invention provides a method and an analog circuit of a chaotic system for automatic switching of four Lü-type fractional order systems, which enriches the automatic switching of chaotic systems. The number and type of the chaotic system improves the randomness, and has a good application prospect in secure communication

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  • Method for automatically switching fractional-order chaotic system by four systems based on Lu-type system and analog circuit
  • Method for automatically switching fractional-order chaotic system by four systems based on Lu-type system and analog circuit
  • Method for automatically switching fractional-order chaotic system by four systems based on Lu-type system and analog circuit

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Embodiment Construction

[0051] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments. see Figure 1-Figure 6 , first construct the Lü type fractional order four systems automatic switching chaotic system, the system selected in this preferred embodiment

[0052] (1) According to the Lü type chaotic system I is:

[0053] dx / dt = a ( y - x ) dy / dt = - xz + cy dz / ...

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Abstract

The invention discloses a method for automatically switching a fractional-order chaotic system by four systems based on a Lu-type system and an analog circuit. The analog circuit comprises 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. By the analog circuit, the fractional-order chaotic system can be automatically switched by four Lu-type subsystems. The analog circuit is more complex than automatically switched chaotic systems formed by two or three sub-chaotic systems and fractional-order chaotic systems that are not switched, has higher randomness, can be a new choice for a signal source for confidential communication, and has brighter application prospect in confidential communication.

Description

technical field [0001] The invention relates to a method for automatically switching chaotic systems of four systems of fractional order based on Lü type system, in particular to a method and an analog circuit for automatically switching chaotic systems of four systems of fractional order based on Lü type system. Background technique [0002] At present, there are many ways to use analog circuits to realize integer-order and fractional-order chaotic systems and circuits, but there are relatively few methods for using analog circuits to realize automatic switching chaotic circuits, and the disclosed automatic switching chaotic systems and circuits are integer order 2 There is no disclosure of a method and circuit for automatic switching of multiple sub-chaotic systems. The present invention provides a method and an analog circuit of a chaotic system for automatic switching of four Lü-type fractional order systems, which enriches the automatic switching of chaotic systems. The...

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Application Information

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IPC IPC(8): H04L9/00
CPCH04L9/001H04L27/001
Inventor 王忠林卞丽赵荣霞
Owner STATE GRID CORP OF CHINA
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