Numerical - Normalized Transition Width for designing multirate LPF

Q.  For designing a multirate LPF with passband 0 to 50 Hz, stopband 60 to 280 Hz, stopband deviation 0.001, passband deviation 0.01 and sampling frequency (fs) = 400 Hz, what would be the value of normalized transition width?
- Published on 27 Nov 15

a. 0.025 Hz
b. 1.25 Hz
c. 1.50 Hz
d. 2.6 Hz

ANSWER: 0.025 Hz

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