In the conventional phasor measuring method based on DFT(discreteFourier transform),no overall consideration is given to the phase angle error. Thus,the frequency calculation and phasorestimation results are not sufficiently accurate.
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- 传统的基于离散傅里叶变换(DFT)的频率跟踪算法对相角误差的考虑不全面,从而其频率、相角、幅值等计算结果也不够准确。