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Secret communication method of parameter uncertain time-delay chaotic neural network

A technology of uncertain parameters and neural network, which is applied in the field of secure communication of chaotic neural network with uncertain parameters and time-delay, can solve the problem of weak anti-interference ability of confidential communication, and achieve the effect of improving anti-interference ability and accuracy

Active Publication Date: 2019-06-28
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Abstract
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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiency in the prior art that the anti-interference ability of the secure communication based on the chaotic neural network is not strong, and provides a secure communication method of the time-delay chaotic neural network with uncertain parameters, which improves the anti-interference ability of the secure communication. Jamming capabilities, further improving the accuracy of transmitted information

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  • Secret communication method of parameter uncertain time-delay chaotic neural network
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  • Secret communication method of parameter uncertain time-delay chaotic neural network

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Embodiment 1

[0055] combine Figure 1~6 As shown, a secure communication method of a parameter uncertain time-delay chaotic neural network of the present invention first establishes a driving system, and constructs a response system according to the driving system; it is worth noting that the driving system of the present invention is based on parameter uncertain time-delay The chaotic neural network is established, and the response system is a response system that allows random noise interference. The secure communication method of a parameter-uncertain time-delay chaotic neural network of the present invention considers parameter uncertainty and random interference factors when constructing a response system, is applicable to complex secure communication systems in the prior art, and further improves the efficiency of transmitting information accuracy.

[0056] Further, an anti-synchronous controller is constructed according to the drive system and the response system; it is worth notin...

Embodiment 2

[0095] combine Figure 7-9 As shown, the content of this embodiment is basically the same as that of Embodiment 1. This embodiment adopts a secure communication method of a chaotic neural network with uncertain parameters and time-delay in Embodiment 1, and transmits the ciphertext signal z(t) through the channel: z( t)=2sin(0.5t+4).

[0096] The parameters used in this embodiment are:

[0097]

[0098]

[0099] Time lag: τ=1; sampling period: T=100; step size: dt=0.005;

[0100] The initial value of the drive system is:

[0101] The initial value of the response system is:

[0102] Activation function:

[0103] Γ=50, Y=200;

[0104] Constant matrix:

[0105]

[0106] Gain matrix:

[0107]

[0108] For the time-domain diagram of the ciphertext signal of the drive system at the sending end, see Figure 7 , for the time-domain diagram of the encrypted signal in the network transmission channel see Figure 8 , the error graph of the original ciphertext ...

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Abstract

The invention discloses a secret communication method of a parameter uncertain time-delay chaotic neural network, and belongs to the technical field of secret communication. According to the secret communication method of the parameter uncertain time-delay chaotic neural network, firstly, a driving system is built, then a response system is built according to the driving system, and then an anti-synchronization controller is built according to the driving system and the response system. When the ciphertext signal is transmitted, the driving system generates a chaotic signal, superposes the chaotic signal and the ciphertext signal to obtain a superposed signal, and then transmits the superposed signal to the response system through a channel. And the response system generates an anti-synchronization chaotic signal through an anti-synchronization controller, and obtains a decrypted ciphertext signal according to the superposed signal and the anti-synchronization chaotic signal. The secret communication method of the time-delay chaotic neural network overcomes the defect that an existing chaotic neural network secret communication technology is weak in anti-interference capability, the parameters of the secret communication method of the time-delay chaotic neural network are uncertain, and the anti-interference capability of secret communication is improved.

Description

technical field [0001] The invention relates to the technical field of secure communication, in particular to a secure communication method of a time-delay chaotic neural network with uncertain parameters. Background technique [0002] In 1990, Pecora and Carroll used the concept of drive-response to propose the synchronization of chaotic systems. Due to the characteristics of randomness, aperiodicity and unpredictability, chaotic signals can be used as carriers of ciphertext information. The application of chaos in secure communication has become Research hotspots in the field of information security. Since the neural network is a highly nonlinear dynamical system, and chaos has the above-mentioned characteristics, the neural network is closely related to chaos. The chaotic neural network usually has the characteristics of simple structure and complex dynamic performance, and is very suitable as a generator of chaotic signals. Therefore, the chaotic neural network secure c...

Claims

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Application Information

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IPC IPC(8): H04L9/00H04L29/06
Inventor 刘亚敏闫志莲周建平邰伟鹏
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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