摘要
阐述了一种利用离散傅里叶变换实现两余弦信号间相位差测量的方法,分析了影响相位差测量精度的因素,给出了仿真结果及结论。
An algorithm of phase difference measurement between two cosine signals based on Discrete Fourier Transformation is presented. Factors which influence precision of phase difference measurement are analysed. And simulating results and conclusions are given .
关键词
DFT
相位差测量
离散傅里叶变换
余弦信号
频偏
phase difference measuring
Discrete Fourier transformation
frequency excursion
