摘要
根据声光双稳系统混沌驱动下的动力学行为，提出利用系统的相位特性实现信息的混沌加密，并且由接收端混沌驱动产生的混沌信号完成信息提取的原理。发现在较大的噪声覆盖下仍然可以实现信息的安全传送，由于信息解密不需要与载波完全同步的混沌信号而只利用传输信号与接收端被驱动系统输出信号的相位关系，因此这种方法具有实际应用价值。
Based on the dynamic behavior of the acousto optical bistable system driven chaotically, a secure communication system is proposed. It can be realized by adding message due to the phase property of the system and extracting message due to the chaotic signal produced by chaos driving at the receive end. It is found that message can be securely transmitted even the signal masked by large noise. The message recovery needs no chaotic signal perfectly synchronized with carrier but only depends on the correlation of transmitted signal to the output signal of driven system at the receive end. The scheme is praticable in application.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1997年第11期1473-1479,共7页
Acta Optica Sinica
