摘要
建立一种基于变型蔡氏电路的超混沌语音保密通信方案。在发端 ,利用变型蔡氏电路对发送信号进行调制 ,在收端对其进行逆变换解调出原信号。根据单向耦合法实现收发系统之间的同步 ,分析了同步的收敛特性。在此基础上设计硬件实验电路 ,进行传送语音信号的硬件实验研究 ,给出了实验结果。
A hyper-chaotic secure communication system of speech and music signal transmission via modified Chua’s circuit is presented. Input signal was modulated by modified Chua’s circuit in the transmitting end. The information was demodulated through inverse course in the receiving end. The synchronization between receiver and transmitter was realized based on the undirectionally coupled method. The convergence of synchronization was analyzed. According to the designed circuits, hardware experiments are demonstrated and the experimental results are given.
出处
《电波科学学报》
EI
CSCD
2001年第2期266-270,共5页
Chinese Journal of Radio Science
基金
国家自然科学基金(6 96 72 0 2 2 )
教育部高等学校博士点学科基金(970 5 6 116 )资助项目
关键词
混沌同步
混沌调制
混沌通信
保密通信系统
modified Chua′s circuits chaotic synchronization chaotic modulation chaotic communication
