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$\begingroup$ Thank you so much for this good answer. I find a problem in the interpolation: the value at -350fs， 50fs and 310fs in the above interpolated "sample" data are very strange. The interpolated value can be over 60000, however, the original data in "try.txt" is smaller than 6000. Could you please check it? $\endgroup$

user14634
– user14634

2016-03-16 08:04:24 +00:00
Commented Mar 16, 2016 at 8:04
$\begingroup$ I expect the frequency domain distribution should have a Gaussian shape. But there are too many noise in the data. Is possible to apply a bandpass filter on the time-domain data, so as reduce the noise? $\endgroup$

user14634
– user14634

2016-03-16 11:47:05 +00:00
Commented Mar 16, 2016 at 11:47

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