Dear NCL user:
Hi, I want to do a low pass filter (filtering signal with period less than 10a) for a 100a time series.
After see some tips on the forum , I still have some qestions.
Using "ezfftf" and "ezfftb" :
x = random_uniform(-1,1,100) ; using a random series as example
fc = ezfftf (x)
fc (:,5:49) = 0.0 ; Is it right for filtering the period longer than 10a?
xband = ezzftb(fc) ; the result
Using filwgts_lancos :
I want to know how to define the nwt and fca to get a similar low pass filter as listed above ?
Thanks!
Lin
LEO_ARIES
2006-12-26
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Received on Mon Dec 25 2006 - 11:17:12 MST
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