如何知道基本频率正确地被fft/lomb-scargle检测到? [英] how to know the fundamental frequency is right detected by fft/lomb-scargle?

问题描述

我正在使用两种方法fft和lomb-scargle来查找时序点的周期.
但是，即使对于相同的数据集，基本频率也会发生很大变化.
仅当我微调采样率时，我才能得到正确的结果.<> br/

I am using two methods,fft and lomb-scargle, to find periods for a timing sequence points.
However the fundamental frequency changes much even for the same dataset.
I can get the right result only when I fine tune the sampling rate.<>br/

如何选择两种方法的参数以获得一致的基频.
如何知道结果是可靠的?

How to choose the parameters of the two methods to get a consistent fundamental frequency.
How to know the result is reliable?

推荐答案

最近的了解腰腿car牙的周期图- 可以在到arxiv的链接是一个很好的参考如何选择正确的参数集以及如何测试结果是否可靠.

The recent "Understanding the Lomb-Scargle Periodogram - Jacob T. VanderPlas" that you can find on This link to arxiv is a very good reference on how to chose the right set of parameters and how to test if your results are reliable.

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