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Topic: FIR Filter
Replies: 9   Last Post: Sep 20, 2009 1:25 PM

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Rune Allnor

Posts: 4,455
Registered: 12/7/04
Re: FIR Filter
Posted: Sep 13, 2009 6:22 AM
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On 13 Sep, 12:10, "alfredo " <luka_...@hotmail.com> wrote:
> I have some problems with FIR filter,someone can help me?
>
> I write my pseudo code:
>
> clear all;
> Asim=[17, 18];  %Definisce le ampiezze
> Tsim=[22.5, 33.48];  %Definisce i periodi
> fase=[1.1, 2.2];  %Definisce le fasi
> p=1:2048;
> value=0;  %Oscilla attorno la linea dello zero se value=0
> Coseno1=0;
> Coseno2=0;
> Coseno1=Coseno1+Asim(1)*cos(2*pi*1/Tsim(1)*p+fase(1))';
> Coseno2=Coseno2+Asim(2)*cos(2*pi*1/Tsim(2)*p+fase(2))';
>
> serie12=Coseno1+Coseno2;
> step =0.01;
>
> serie= serie12;
> step=0.01;
> Tmin=8;
> Tmax=120;
> A=length(serie);
>
> Y=fourier(serie',Tmax,Tmin,step);            %fourier trasform
>
> Ok , now how can I implement a high pass filter FIR, for cut off  the frequency 1/ 33.48 ?


What has all this to do with designing filters?

Rune



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