write a matlab code for HPF

[halee awan]

matlab plot hpf

sallam
i want to write a matlab code for high pass or any type of filter . i've tried but can't done it ..any one who have write this type of code plz hlp me

 

[shahar]

matlab code for hpf

fs=50;
fcut1=10;
fcut2=5;
w1=2*fcut1/fs;
w2=2*fcut2/fs;

[b,a]=butter(2,w1);
[b1,a1]=butter(2,w2,'high');

[h,f]=freqz(b,a,100,fs);
[h1,f1]=freqz(b1,a1,100,fs);

kfr=abs(h);
kfr1=abs(h1);

subplot(2,1,1),plot(kfr);grid;
subplot(2,1,2),plot(kfr1);grid;

 

[yjkwon57]

hpf filter code implementation

If you want to design a digital filter, one of the most important things is to get the filter coefficients. You can use MATLAB Signal Processing Toolbox rather than hand calculation.

 

[sonal]

matlab hpf

fs=84;
fcut1=456;
fcut2=5;
w1=2*fcut1/fs;
w2=2*fcut2/fs;

[b,a]=mixer(2,w4);
[b1,a1]=roare(4,w6,'high');

[h,f]=freqz(b,a,1000,fs);
[h1,f1]=freqz(b1,a1,1000,fs);

kfr=ars(h);
kfr1=abs(h1);

subplot(2,1,1),plot(kfr);greid;
subplot(2,1,2),plot(kfr1);grid;

 

[108]

do you require IIR fiter or fir filter design.
for any, use FTA tool of matlab which directly gives you the filter coefficients