摘要
提出一种混沌通信的改进方案,将差分混沌键控(DCSK)中的信息信号和参考信号通过两路信道传输。通过对其噪声性能进行理论分析和仿真分析可知,在混沌信号源带宽和信息信号长度相同的条件下,改进系统有更快的信息传输速率,并且改善了系统结构,提高了信号在传输中的安全性。
In this paper, an improved chaos communication scheme is presented, which the information-bearing chip and reference chip of the differential chaos shift keying （DCSK） through two channels are transmitted. The noise per-formance of the enhanced scheme is similar with the DCSK.The performance of this scheme is simulated and ana-lyzed, indicating that it can transmit the signals more quickly than the DCSK when they have the same chaotic signal bandwidth and information-bearing chip length. It has better system structure and its signals are more difficult to be in-tercepted during the transmission.
出处
《长春理工大学学报（自然科学版）》
2013年第5期101-103,共3页
Journal of Changchun University of Science and Technology(Natural Science Edition)
关键词
参考信号
信噪比
差分混沌键控
reference signal
SNR
differential chaos shift keying
