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以间歇驱动方式实现了玛珂格拉斯(MG,Mackey-Grass)系统的同步,并把它与离散数字传输相结合构成一种新的混沌通信实现方案。该方案克服了连续混沌系统用于通信时混沌调制和解调电路难以实现以及模拟信道中畸变不可克服等困难。系统设计中详细讨论了间歇驱动周期和输入信号比例放大系数的恰当选取。语音通信的实验结果表明,在获得极佳的保密性能同时,该系统通信速率和通信质量可以达到或接近传统的数字通信系统的水平。
It realizes the synchronization of MG and Mackey-Grass system by intermittent driving, and combines it with discrete digital transmission to form a new scheme of chaotic communication. The scheme overcomes the difficulties that the chaos modulation and demodulation circuit can not be realized when the continuous chaotic system is used for communication and the distortion can not be overcome in the analog channel. System design discusses in detail the intermittent drive cycle and input signal proportional amplification factor of the appropriate selection. The experimental results of voice communication show that the communication rate and quality of the system can reach or approach the level of the traditional digital communication system while obtaining excellent confidentiality.