摘要
基于Matlab/Simulink为软件平台,研究了微弱信号的混沌检测原理与方法,建立了仿真模型,给出强噪声中微弱周期信号检测的仿真结果以及混沌方法检测微弱信号的步骤,研究了采样周期对系统性能的影响。仿真结果表明它能检测到信号为10-10V,强噪音环境下能检测到信号为5×10-9V,混沌方法具有很强的微弱信号检测能力,为混沌虚拟仪器开发打下了基础。
Based on Matlab/Simulink, the principle and methods of faint signal chaos detection are studied. The simulated model is established. The simulation results and the process of faint periodic signal detection in big noise are given. And the influence of sampling period on system performance is also studied. The simulation results show it can detect 10^-10V faint signal and 5 ×10^-9V in big noise. Chaos method has strong faint signal detection capability and it provides basis for virtual instrument development.
出处
《浙江纺织服装职业技术学院学报》
2005年第4期50-53,共4页
Journal of Zhejiang Fashion Institute of Technology
基金
教育部重点项目(编号02108)
湖南省教育厅重点项目(编号04A036)
关键词
微弱信号
混沌
检测
虚拟仪器
faint signal
chaos
detection
virtual instrument
