具有自动频率跟踪的多路同步采集系统

A multi-channel and simultaneous signal collection system with the function of automatically tracing the frequency

本文着重比较带锁相环的多路信号同步采集系统的三种设计方案 ,并在此基础上设计了一个基于单片机89C51和模数转换器 AD7874的具有自动频率跟踪的多路同步采集系统。

The article compared mainly the three designs of the multi channel and simultaneous signal collection system with a phase locked loop Then a multi channel and simultaneous signal collection system was made with the function of automatically tracing the frequency on the basis of a single chip microcomputer 89C51 and A/D converter AD7874