同频信号相位差的高精度检测

讨论了常用的检测同频信号相位差的方法。对于广泛应用的过零时间差测量方式，分析了其主要缺点并提出了对策，介绍了高频鉴相器的特性及适用场合。针对单片机系统，提出了具有较高测量精度同时简化计算的线性插值方法，叙述了具体做法，并对其误差进行了分析。

Precision measurement of phase difference for signals at same frequency

This paper discussed different methods used for measurement of phase difference.Measuring the time difference of zero passage was widely used.Analyzed several disadvantages to it,and brought forward some strategies.For high frequency application,introduced the characteristic of phase discriminators.Great computational effort should be avoid for real-time control application in the micro-controller system.Introduced linear interpolation method for precision measurement and discussed practical method and tole...