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From: fred on 9 Apr 2007 05:04
Hi,
Is it correct that for pwelch, the data sequence n is divided into 8
section of equal length with 50% overlap. if I do not specify nfft,
the default value is 256, i.e. if the length of segment is inferior
at 256, it is completed by a zero padding to 256 length sequence to
compute the fft in ecah sequence.

thanks

Fred
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