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Method for automatically switching four Chen type system based fractional order chaotic systems and analog circuit

A chaotic system and automatic switching technology, applied in the field of analog circuits, can solve the problem of less chaotic circuits

Active Publication Date: 2014-12-24
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 for automatic switching of four Chen-type fractional systems of chaotic 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 four Chen type system based fractional order chaotic systems and analog circuit
  • Method for automatically switching four Chen type system based fractional order chaotic systems and analog circuit
  • Method for automatically switching four Chen type system based fractional order chaotic systems 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.

[0052] see Figure 1-Figure 6 , first of all, four systems of Chen type fractional order are constructed to automatically switch the chaotic system, the system selected in this preferred embodiment

[0053] (1) According to the Chen type chaotic system I is:

[0054] dx / dt = a ( y - x ) dy / dt = ( c - a ) ...

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Abstract

Proposed is an analogue circuit for realizing automatic switching of four fractional order systems based on a Chen type system. The analogue circuit for realizing automatic switching of four fractional order systems based on a Chen type system is composed 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 analogue switch U6. In the present utility model, the analogue circuit is used for achieving the fractional order chaotic system with four Chen type subsystems which are automatically switched. The fractional order chaotic system is more complicated and higher in randomness than the automatic switching chaotic system which is composed of two or three sub-chaotic systems and non-switching fractional order chaotic systems, and can be a new choice for the signal source of secret communications and has better application prospects in secret communications.

Description

technical field [0001] The invention relates to a method for automatically switching a chaotic system based on a Chen type system with four fractional systems of fractional order, in particular to a method and an analog circuit for automatically switching a chaotic system based on a Chen type system with a fractional order of four systems. 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 for automatic switching of four Chen-type fractional systems of chaotic systems, which enriches the automatic switching of...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/00
CPCH04L9/001
Inventor 胡晓波高明万一农余成星陈刚戚益中
Owner STATE GRID CORP OF CHINA
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