%0 Journal Article
%T Multi-level Digital Chaos Shift Keying Based on Multi-scroll Chaotic Systems<br>基于多涡卷系统的多进制数字混沌键控方式
%A YU Si-min~
%A <br>禹思敏
%A 林清华
%A 丘水生
%J 中国图象图形学报
%D 2004
%I 
%X The main feature of multiple-scroll chaotic attractors is that they exhibit a rich variety of complicated chaotic dynamic phenomena and have many scroll encryption parameters that can be applied to secure communications. Based on the study of their generating mechanism, a novel scheme of multi-level digital chaos shift keying (MDCSK) via multi-scroll chaotic systems is presented. In the transmitter, the slope values of the multiple scroll chaotic attractors are modulated using multi-level digital signals, which generates MDCSK signals. In the receiver, the original multi-level digital signals are recovered according to the principle of drive-response synchronization and coherent demodulation. Compared with chaos shift keying (CSK), MDCSK has an advantage that multi-level digital signals can be encrypted, by using multi-scroll encryption parameters. Results of theoretical analysis and computer simulation are also given, which demonstrates the effectiveness of the proposed method.
%K multiple scroll chaotic attractors
%K multi-level digital chaos shift keying(MDCSK)
%K drive-response synchronization
%K coherent demodulation<br>混沌键控
%K 多进制
%K 数字信号
%K 发送端
%K 接收端
%K 数字调制
%K 保密通信
%K 密钥
%K 加密
%K 二进制
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=533F59206DADBE9D&yid=D0E58B75BFD8E51C&vid=9CF7A0430CBB2DFD&iid=59906B3B2830C2C5&sid=B2A9EA001599F2ED&eid=01AFAE7A0B7C782E&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=0&reference_num=14