机构地区: 华南理工大学电子与信息学院
出 处: 《桂林电子工业学院学报》 2003年第3期1-4,共4页
摘 要: 混沌信号对初始条件的敏感,使得目前混沌信号在通信系统的收发端难以建立同步,实际应用中基于同步的混沌信号相干检测技术还不很成熟。通过采用一种基于概率统计的方法,应用最大似然法和贝叶斯公式,在CSK(ChaosShiftKeying)系统的接收端重构发射端混沌映射,实现混沌信号的非相干检测。在一定的信噪比条件下,理论推导和计算机仿真结果是一致的。 It is hard for chaotic signals between transmitter and receiver to realize synchronization now.This paper presents a kind of noncoherent detection technology for chaotic signal based on probabilistic method.The method consists of maximumlikelihood and Bayesian formulation.Nonconherent detection is realized by the reconstruction of chaotic signal at CSK receiver.