A Chaotic Oscillator with High Security for Secret Communication

doi:10.7652/xjtuxb201706006

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A Chaotic Oscillator with High Security for Secret Communication

更新时间：2025-07-09

- A Chaotic Oscillator with High Security for Secret Communication
- Vol. 51, Issue 6, Pages: 35-40(2017)
- 作者机构：
  
  西安交通大学电气工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201706006
  CLC： TM132
- Online First：10 June 2017，
  
  Published：2017
- 稿件说明：
移动端阅览
A Chaotic Oscillator with High Security for Secret Communication[J]. 2017, 51(6): 35-40.
DOI：

A Chaotic Oscillator with High Security for Secret Communication[J]. 2017, 51(6): 35-40. DOI： 10.7652/xjtuxb201706006.

摘要

针对混沌保密通信中传统振荡器因其混沌映射容易被预测从而导致通信安全性降低的问题

提出了一种由单一电压输入控制的四维混沌振荡器。该混沌振荡器由一个直流电压进行控制

通过调节该控制电压

可使振荡器处于周期、倍周期、混沌甚至是超混沌运动状态。由于该振荡器混沌状态下的吸引子是隐藏吸引子

其位置不能通过在线平衡点邻域内选任意初值的方法来确定

从而加强了该混沌振荡器动力学行为的不可预测性

提高了保密通信的安全性。硬件实验结果表明

当控制电压在区间[2.80

3.40] V上取值时

该振荡器对外界干扰最为敏感

其混沌运动的不可测性最高

从而使混沌保密通信的安全性达到最佳。

Abstract

A 4D chaotic oscillator controlled by a single voltage input is proposed to solve the problem that the security in chaotic secret communication is reduced because the chaotic mappings of traditional chaotic oscillators are easy to predict. The chaotic oscillator is controlled by a DC voltage and it can be kept in motion state of period

period-doubling

chaos or even hyper-chaos through regulating the control voltage. Because the oscillator's attractors are hidden attractors in chaotic state and the locations of these attractors cannot be calculated through choosing points in the neighborhood of line equilibrium

the unpredictability of these chaotic oscillator's dynamic behaviors and the security of secret communication are improved. Hardware experiment shows that when the voltage is controlled within the interval of [2.80

3.40] V

the chaotic oscillator is the most sensitive to external disturbance

the unpredictability of its chaotic motion is the highest

and the security of chaotic secret communication achieves the best.

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references

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