高精度频率测量系统设计与实现

Design and Implementation of High Precision Frequency Measurement System

常规的信号处理中快速傅里叶变换法不能满足频率精度要求。本文介绍了一种基于DFT变换的幅值曲线拟合算法用于改善频率测量精度。

The conventional signal processing like FFT can’ t meet requirements for the frequency accuracy. An amplitude curve fitting algorithm based on DFT to improve frequency measurement accuracy is presented.