一种新型混沌通信系统:频率调制相干延迟键控  

A Novel Chaos-based Digital Communication Scheme:Frequency-Modulated Correlation Delay Shift Key

作　　者：邓萍[1] 

机构地区：[1]南京邮电大学,南京210003

出　　处：《重庆科技学院学报（自然科学版）》2008年第5期101-103,共3页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

摘　　要：FM-DCSK通信系统是对DCSK系统的改进,但由于消息信号是经发射端开关切换,跟随参考信号发射出去,会出现跳变,重复发送,降低了传输码率。用CDSK方案取代DCSK方案,并与FM结合,可以保留CDSK的优点,提高保密性和传输码率。Frequency - modulated DCSK is an improved scheme of DCSK. In the transmitter, the messages follows the reference signals via a switch, which results in a hopping in time domain and the repeated signals. A The bit rate is reduced. If DCSK is replaced by CDSK, for the combination with FM, the scheme has the advantages of the CDSK, the security and the bit rate are enhanced.

关 键 词：通信系统 频率调制 码率 解调 

分 类 号：TN914[电子电信—通信与信息系统]