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Topic:
is it necessary to taper the begin and the end of a time series before fft?
Replies:
3
Last Post:
May 15, 2014 9:04 PM



Ha
Posts:
93
Registered:
11/30/09


is it necessary to taper the begin and the end of a time series before fft?
Posted:
May 15, 2014 3:41 AM


Someone told me that if the value of the beginning is quite different from the value of the end of the time series, some unexpected results may rise.
Is it necessary to taper the begin and end to zero when using the builtin fft function of matlab?



