Size problem after filtering

Hi,

I have filtered my signal of size (n), with a filter of size (NFFT). After filtering, my new signal have a length of NFFT. Is it possible to recover the initial length (by downsampling or resampling) ?

Thank you,

Answer 1

[Thomas Koelen]

This happens because it only samples at the size of the NFFT. You could resample your data with the

resample

function.

http://nl.mathworks.com/help/signal/ref/resample.html

Answer 2

[Anonyme Anonyme]

I will try by this method.