In digital systems filters need a linear phase response or


1. Draw the four brick wall responses. Identify the passband, stopband, and cutoff frequencies of each.

2. Describe the five approximations used in filter design. Use sketches as needed to show what happens in the passbands and stopbands

3. In digital systems, filters need a linear phase response or maximally flat time delay. What does this mean, and why is it important?

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Electrical Engineering: In digital systems filters need a linear phase response or
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