implementation of notch filter

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Aniket il 7 Giu 2013

Hello i have written code of notch filter equation is as following

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alpha = 0.8;

fs = 1200;

omega = 2*pi*60/fs; % fs = sampling frequency

num = [1 -2*cos(omega) 1] % numerator

den = [1 -2*alpha*cos(omega) alpha*alpha] % denominator

***********************************

i want to use this in simulink block and i am using discrete transfer function block but i am not getting notch at 60 hz ....

so i want to ask any think wrong in code or which filter block should i used in simulink ?

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