Problem in designing a stable bandpass filter

Thread Starter


Joined Nov 4, 2011
Hi all! I am a newbie in this digital signal processing field. Can you please help me in solving my homework? I need some hints.... I have an idea, but I am not very confident....

Thanks in advance.

Design a stable bandpass filter of order two with the following characteristics:

• The system should be real-valued,
• the center frequency of the passband is Ω = pi/2
• the frequency response at the center frequency of the passband equals 1 meaning H((e^j*pi/2)=1)
) = 1),
• the magnitude of the frequency response |H(e^jΩ)| = 1/√2 for Ω = 4pi/9 , and
• H(e^jΩ) ≡ 0 for Ω = 0 and Ω = pi.


Joined Nov 25, 2009
Greetings and welcome to the AAC forums!

The Homework Help section asks that you post up the work you have done so far, so we can see it and find where you went wrong, or suggest better approaches. We will not do all your work for you.

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Thank you.