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Finite time combination synchronization sliding mode control method for composite chaotic systems with uncertain parameters

A technology of uncertain parameters and chaotic systems, applied in the direction of adaptive control, general control systems, control/regulation systems, etc., can solve the problems of chaotic systems that are difficult to achieve synchronization and uncertain parameters

Inactive Publication Date: 2016-07-20
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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Problems solved by technology

[0004] The present invention proposes a finite-time combined synchronous sliding mode control method for a complex chaotic system with uncertain parameters, which solves the problem that the chaotic system is difficult to achieve synchronization within a limited time in the prior art

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  • Finite time combination synchronization sliding mode control method for composite chaotic systems with uncertain parameters
  • Finite time combination synchronization sliding mode control method for composite chaotic systems with uncertain parameters
  • Finite time combination synchronization sliding mode control method for composite chaotic systems with uncertain parameters

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[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0058] Please refer to Figure 1-Figure 9 As shown, the finite-time combined synchronous sliding mode control method for complex chaotic systems with uncertain parameters includes the following steps:

[0059] A: For three complex chaotic systems with uncertain parameters, two complex chaotic systems with uncertain parameters are used as the driving system, and the other complex chaotic system with uncertain parameters is used as the response system, and then the c...

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Abstract

The invention provides a finite time combination synchronization sliding mode control method for composite chaotic systems with uncertain parameters. The method comprises the following steps: A, as for three composite chaotic systems with uncertain parameters, the two serve as driving systems, the other one serves as a response system, subtraction is correspondingly carried out between the combination of the two driving systems and the response system, and a combination error system is obtained; B, a terminal sliding mode control plane is designed to enable the combination error system to achieve the designed sliding mode plane, three parameter control laws and a sliding mode control law in the finite time are designed, and realization of sliding mode control in the finite time of the combination error system is ensured; and C, finally, the three parameter control laws and the sliding mode control law in the finite time are loaded to the response system, and combination synchronization sliding mode control in a finite time on the three composite chaotic systems with uncertain parameters can be realized. Safety of secure communication is improved, and the control efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the field of signal processing and secure communication, and in particular relates to a finite-time combined synchronous sliding mode control method of a complex chaotic system with uncertain parameters. Background technique [0002] At present, sliding mode variable structure control uses the controller to force the motion of the closed-loop system to reach a pre-selected sliding mode surface, and then maintains the system motion on the sliding mode surface under the action of a discontinuous high-frequency switching control law, and finally along the The sliding surface converges to the desired dynamics. Huang Liangyu used sliding mode variable structure control method to realize the chaos control of external cavity feedback semiconductor laser. In general, choosing a linear sliding hyperplane is the most common case in variable structure control theory. This linear sliding hyperplane can ensure that after the system trajec...

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Application Information

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IPC IPC(8): G05B13/04
CPCG05B13/04
Inventor 孙军伟王延峰崔光照张勋才王妍王子成黄春姚莉娜方洁
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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