ghasem
Posts:
98
Registered:
4/13/13


how remove unwanted high frequencies in MATLAB?
Posted:
Apr 22, 2013 11:05 AM


Hi. I have one problem. I have a data vector. for example : data=rand(1,n) ; n=100; I want to obtain discrete fourier transform of it by DCT command. and then,by a lowpass filter,remove unwanted high frequencies of larger than f1. f1 is determined. and finally , again convert filtered data from discrete frequency domain to data vector (that is in spatial domain,no time domain). also, my lowpass filter (Fun(f)) is ideal . i.e : Fun(f) =1 ; f<f1 Fun(f) = 0 ; f>f1 is there anyone who know " how remove unwanted high frequencies in matlab "? please give me a code for it. best wishes... ghasem

