implementation of notch filter

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Aniket 2013 年 6 月 7 日
Hello i have written code of notch filter equation is as following
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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