摘要
通过Mulitisim仿真软件,实现对锁相放大器的设计,检测出含噪声中的微弱信号。本系统是基于锁相放大器的微弱信号检测电路,用来检测在强噪声背景下已知频率的微弱正弦波信号的幅度值及相位。
Through the Mulitisim simulation software, it can realize the design of the phase locked amplifier,and detect the weak signal. This system is based on the weak signal detection circuit of the phase lock amplifier, which is used to detect the amplitude value and phase of weak sine wave signal in strong noise background.
作者
葛小凤
陈亚军
GE Xiao-feng;CHEN Ya-jun(School of Electronic Information Engineering,China West Normal University,Nanchong 637009,Sichuan Province,China)
出处
《信息技术》
2016年第12期97-100,共4页
Information Technology
基金
四川省教育厅重大科研培育项目(07ZZ035)
