Question

The blackmann(N) command returns a ___________

(a) N-point periodic blackmann window

(b) N+1-point periodic blackmann window

(c) N+1-point periodic blackmann window

(d) N-point symmetric blackmann window

This question was posed to me in final exam.

Asked question is from Fourier Analysis and Filtering in section Beyond the Basics of MATLAB

Answer 1

Right answer is (d) N-point symmetric blackmann window

The best I can explain: Unless mentioned, the default type of blackmann window generated by the blackmann() command is a symmetric one. It is an N-point symmetric blackmann window and hence the rest of the options are incorrect.