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Homework Statement
I am asked to plot the log magnitude and phase of the frequency response 1 + 1/2*e^(-j*omega). I am told to use the freqz function for this problem. I have tried using the help freqz feature in Matlab but I haven't been able to work it out.
Homework Equations
H(e^(j*omega) = 1 + 1/2*e^(-j*omega)
H(e^(j*omega) = (e^(j*omega) + 0.5)/(e^(j*omega))
The Attempt at a Solution
omega=linspace(0,pi,1024);
[H,W] = freqz(0.5,1,512);
subplot(2,1,1);
plot(omega,abs(H))
title('Log Magnitude (6.39a)');
subplot(2,1,2);
plot(omega,angle(H))
title('Phase (6.39a)');