【摘要】 研究了基于Rossler系统的主动-被动混沌调制保密通信系统,利用标准数字信道传输发送信号。仿真结果表明,当采样保持的频率达到一定大小时,只需8位量化就可实现保密通信,且只要信道噪声的信噪比高于14dB则恢复的信号失真较小。更多还原

【Abstract】 We study a secure chaotic communication scheme based on Rossler system, modulating the information signal by active-passive method, and transmitting the chaotic signal which carries the secrete information signal through the standard digital channel. Our simulation result shows that, under a certain sample-hold frequency, only 8-bit quantizing is enough for a general purpose secure communication; and when the channel signal-noise ratio greater than 14dB the recovered information signal can be acceptable.更多还原