One method is phase differencecorrection of partly FFT; the other is FFT frequency correction with quadratic interpolation.
一是利用分段FFT的相位差修正算法,二是基于二次内插的频率FF T校正法。
2
A new virtual calibrator for instrument transformer is presented. A phase differencecorrection method is applicable to correct electronic instrument transformer.
介绍了一种新型的虚拟互感器校验仪,它采用相位差校正法解决了校验电子式互感器的问题。
3
Compared with the original two kinds of Phase-DifferenceCorrection, only one sequence of time-domain signal is sampled and FFT analysis of same points is performed twice in this method.