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Method for realizing three-signal synchronous transmission based on optical chaotic system

A system implementation, optical chaos technology, applied in transmission systems, synchronization devices, digital transmission systems, etc., can solve the problems of low-dimensional chaotic encryption systems such as low confidentiality, small amount of transmitted information, unfavorable resource optimization and efficiency improvement, etc.

Inactive Publication Date: 2014-08-13
LIAONING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most chaotic systems are based on low-dimensional electrical chaotic systems. However, low-dimensional chaotic encryption systems do not have high security, and many attack methods have been produced, and most of them are single-signal secure communications, with a small amount of transmitted information. Conducive to resource optimization and efficiency improvement

Method used

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  • Method for realizing three-signal synchronous transmission based on optical chaotic system
  • Method for realizing three-signal synchronous transmission based on optical chaotic system
  • Method for realizing three-signal synchronous transmission based on optical chaotic system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A double-ring erbium-doped fiber laser is used as the transmitter and receiver, and the transmitter sends three continuous information signals (s 1 (t)=sinωt s 2 (t)=sin2ωt s 3 After (t)=sin0.5ωt, where ω=2π×10 9 ) is loaded on the chaotic signal for transmission, and the receiver separates the received signal under the control of the controller and the signal update rule to obtain three continuous information signals;

[0031] The controller is as follows:

[0032] u 1 = k a η 0 e 3 - g a ( y 1 y ...

Embodiment 2

[0072] The double-ring erbium-doped fiber laser is used as the transmitter and receiver. The transmitter loads the three-way pulse signal on the chaotic signal for transmission, and the receiver separates the received signals under the control of the controller and the signal update rule to obtain three-way pulse signals. Continuous information signal. The controller, signals and signal update rules are the same as in Embodiment 1.

[0073] The chaotic phase diagram of the transmitter loaded with pulse information signal and no signal in Embodiment 2 of the present invention is as follows Figure 5 Shown: The chaotic phase diagram differs for the transmitter's chaotic attractor (solid line) compared to the unloaded signal (dashed line).

[0074] Embodiment 2 of the present invention The comparison of the evolution of the transmitter loaded pulse information signal and the unadded signal variable evolution is as follows Image 6 Shown: The variable evolution (solid line) afte...

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Abstract

The invention discloses a method for realizing three-signal synchronous transmission based on an optical chaotic system. Chaotic transmission is carried out by taking double-ring Er-doped fiber lasers as an emitter and a receiver, a controller is shown in the descriptions, and a signal updating rule is shown in the descriptions.

Description

technical field [0001] The invention belongs to the chaotic security communication technology, in particular to a method for realizing synchronous transmission of three-way signals based on an optical chaotic system, which has good security, is beneficial to resource optimization and improves transmission efficiency. Background technique [0002] The secret communication scheme using the chaotic system is to load the information to be transmitted on the chaotic signal by the transmitter (chaotic system), so that the chaotic signal is mixed with the information to be transmitted, and jointly generate mixed noise for transmission, so as to achieve the purpose of information source encryption ; Then the receiver (deciphering the chaotic system corresponding to the transmitter) processes the received signal, and separates the chaotic signal and the transmitted information, so as to obtain correct information. Specifically: at the transmitter, the chaotic system generates a chaot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/00H04L7/00
Inventor 李成仁何莹石杨兴国姜博思孙景昌杨怡王时野
Owner LIAONING NORMAL UNIVERSITY