Statistical significance of spectral peaks |
Statistical significance of spectral peaks |
 Aug 21 2012, 02:34
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#1
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Group: Members Posts: 6 Joined: 12-January 12 Member No.: 96382  |
Hello forum folks!
I have results of FFT for a number of signals, and I need to check the significance of a certain peak at a certain frequency in each of them. I am sorry for asking so bluntly, but how can this be done? I'm a total dummy to FFT, so I would really appreciate any simple and easy-to-follow directions  Thank you all so much! Natalia |
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Aug 21 2012, 07:28
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#2
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Group: Members Posts: 6 Joined: 12-January 12 Member No.: 96382 |
It means rejecting the null hypothesis, which is that the time series is simply white noise at the given frequency. In other words, proving that the peak at a given frequency is not by chance (noise) by due to periodicity.
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Natalia Statistical significance of spectral peaks Aug 21 2012, 02:34
saratoga QUOTE (Natalia @ Aug 20 2012, 21:34) I ha... Aug 21 2012, 04:10 Arnold B. Krueger QUOTE (Natalia @ Aug 20 2012, 21:34) Hell... Aug 21 2012, 08:50
Natalia QUOTE (Arnold B. Krueger @ Aug 21 2012, 16... Aug 22 2012, 01:43 |
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