QUESTION
We wish to use the Kaiser window method to design a discrete-time filter with generalized linear phase that meets specifications of the following form:
|H(eiw)| ≤ 0.01, 0 ≤ |w| ≤ 0.25Π
0.95 ≤ |H(eiw)| ≤ 1.05, 0.35Π ≤ |w| ≤ 0.6Π
|H(eiw)| ≤ 0.01, 0.65Π ≤ |w| ≤ Π
(a) Determine the minimum length (M+1) of the impulse response and the value of the Kaiser window parameter ß for a filter that meets the preceding specifications.
(b) What is the delay of the filter?
(c) Determine the ideal impulse response hd[n] to which the Kaiser window should be applied.