By the k-multiple frequency rotate transform, k time harmonic can be separated.
最后研究了k-倍频旋转变换的任意次谐波的检测。
参考来源 - 电能计量系统的谐波研究·2,447,543篇论文数据，部分数据来源于NoteExpress
But compare with FFT, the calculation time needed by the multiple frequency rotate transform is very long, which has influenced its wide application to a certain extent.
但是，与快速傅立叶变换相比，倍频旋转变换理论所需要的计算时间很长，这在一定程度上影响了它的广泛应用。
Harmonic measure method is the key of the measurement. In this paper, the harmonic measure method which based on the multiple frequency rotate transform theory is researched and analyzed.
谐波测量方法是谐波测量的核心环节，本文对基于倍频旋转变换理论的谐波测量方法进行了研究分析。
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