摘要
分析了Duffing方程的基本形式,阐述了基于混沌信号相平面变化进行弱信号检测的工作原理,分析了蔡氏电路中混沌吸引子的键波及螺旋表示方法,设计了一个基于Chua电路键波同步系统;通过实验给出了混沌键波同步系统在在弱信号检测的应用,解决了目前利用混沌检测弱信号中存在的两个关键问题,为混沌键波同步系统在弱信号中的实际应用奠定了一定的基础。
The basic form of Duffing equation is firstly analyzed; and then. it describes the principle of weak signal detection based on the change of phase trace; the method of expressing Chaotic attractor by ways of bond wave and spiral in Chua circuit is presented, and then, a bond wart, synchronization syslem based on Chua circuit is designed; an application is put forward, which detects weak signal utilizing chaos bond wave synchronization system, the critical problems existing in weak signal detection based on chaos can be solved. The research provides the foundation of putting chaos bond wave synchronization system into practice application to weak signal detection.
出处
《计算机测量与控制》
CSCD
2008年第1期36-38,45,共4页
Computer Measurement &Control
基金
陕西科技大学校级自然科学基金项目(ZX05-41)
陕西省教育厅专项科研计划资助项目(05JK159)
