=> 7. What is the magnitude of H(ω) for the three point moving average system whose output is given by y(n)=1/3[x(n+1)+x(n)+x(n-1)]?
A. 1/[3|1-2cosω|].
B. 1/[3|1+2cosω|].
C. |1-2cosω|.
D. |1+2cosω|.
Answer:A
=> 7. What is the magnitude of H(ω) for the three point moving average system whose output is given by y(n)=1/3[x(n+1)+x(n)+x(n-1)]?
A. 1/[3|1-2cosω|]. B. 1/[3|1+2cosω|]. C. |1-2cosω|. D. |1+2cosω|.
Explanation: For a three point moving average system, we can define the output of the system as