【作者】 禹思敏； 吕金虎；

【Author】 Yu Simin1,Lü Jinhu2 1.College of Automation,Guangdong University of Technology,Guangzhou 510090,P.R.China2.Academy of Mathematics and Systems Science,Chinese Academy of Sciences,Beijing 100080,P.R.China

【机构】 广东工业大学自动化学院； 中国科学院数学与系统科学研究院；

【摘要】 基于一个典型的文氏电桥混沌振荡器,应用非线性环状耦合的方法,我们提出了一种新的超混沌保密通信方案。具体而言,我们通过构建一个包含信号的闭合环路,对有用信息进行加密,实现发送端与接收端之间的超混沌系统的同步,最后在接收端解调出原信号。利用数字化处理技术,通过对系统的连续时间无量纲状态方程进行离散化处理和变量比例变换,我们提出了用DSP技术实现该方案的一般设计原理,并给出了硬件实现结果。最后,基于DSP平台,我们提出了一种具有实际应用价值的语音混沌保密通信的方案。更多还原

【Abstract】 Based on a typical chaotic Wien-bridge oscillator,we propose a novel hyperchaotic secrete communication approach by using the nonlinear ring coupling technique.In detail,we firstly construct a loop with signal,then encrypt the useful information and realize the hyperchaotic synchronization between sender and receiver,and finally demodulate the original signal at the end.By using digital processing technology,discreting state variable of continuous time equation without dimensionless and ratio transformation,we present the general design principles based on the DSP technology and some experimental results.Moreover,based on DSP platform,we propose a voice secrete communication method with very high practical value.更多还原