基于收缩映射混沌键控信号的相关解调  

Coherent Demodulation of Chaos Shift Keying Signals Based on Contraction Maps

作　　者：刘剑波[1] 叶春飞[1] 张树京[1] 

机构地区：[1]上海铁道大学电信工程系,上海200331

出　　处：《铁道学报》1999年第6期45-50,共6页Journal of the China Railway Society

基　　金：上海市科技启明星基金

摘　　要：提出了一种基于收缩映射的混沌键控信号解调方案，给出了系统误码性能的数学表达式。该方案将所传输的数字信号映射为混沌系统的两种不同的同步相位，再利用接收端提供的同步信号将其提取出来。仿真结果表明，该方案能够快速实现同步，有较强的鲁棒性。In this paper, a coherent demodulation scheme for chaos shift keying signals is presented, and formula for bit error rate is given. Digital signals to be transmitted are mapped into two synchronous phases of chaotic systems and detected by synchronous signals at the receiver. Simulations indicate that this scheme can synchronize fast, be robust to noise and easily to be implemented.

关 键 词：收缩映射 混沌键控信号 通信系统 信号解调 

分 类 号：TN914[电子电信—通信与信息系统]