基于Duffing振子的弱信号初始相位同步算法  

The Weak Signals' Chaotic Phase Synchronization Algorithm Based on Duffing Oscillator

作　　者：孙文军[1] 芮国胜[1] 陈强[1] 刘林芳[1] 

机构地区：[1]海军航空工程学院电子信息工程系,烟台264001

出　　处：《科学技术与工程》2016年第7期210-214,240,共6页Science Technology and Engineering

基　　金：国家自然科学基金(41476089)资助

摘　　要：针对传统混沌相位同步方法复杂度高,预警准确率低的问题,提出了一种基于耦合振子的混沌同步算法。首先给出了混沌相位同步模型及双耦合振子检测方程;其次,对耦合混沌模型的非线性动力学特性进行了深入分析,并对系统模型的抗噪性和稳定性进行了分析;最后,采用基于电力载波信号的仿真实验证明了算法的有效性。The traditional method of chaotic phase synchronization is usually high of complexity,low accuracy of warning. According to these problems,one chaotic synchronization algorithm was proposed based on two coupled oscillators. Firstly,the model of chaotic synchronization and detection of two coupled oscillators equation are given.And then,the nonlinear dynamics of coupled chaotic oscillators model are in-depth analysis,and the noise immunity and stability analyzes of the algorithm are proved. Finally,the power carrier signal simulation results are demonstrated for the effectiveness of the algorithm.

关 键 词：相位同步 耦合振子 抗噪性 稳定性 

分 类 号：TN911[电子电信—通信与信息系统]