The disadvantage of high precision frequency accuracy measurement method available is that an expensive high-resolution time interval counter is needed.
常用高精度校频算法的不足在于需要昂贵的高分辨时间间隔计数器。
The design of a counter measuring synchronous period is introduced in this paper. And based on it, a high precision digital cymometer is designed.
本文介绍了一种同步测周期计数器的设计，并基于该计数器设计了一个高精度的数字频率计。
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