Explore topic-wise MCQs in Digital Signal Processing.

This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Signal Processing knowledge and support exam preparation. Choose a topic below to get started.

1.

The Nth rot of unity WN is given as ______________

A. e<sup>j2 N</sup>
B. e<sup>-j2 N</sup>
C. e<sup>-j2 /N</sup>
D. e<sup>j2 /N</sup>
Answer» D. e<sup>j2 /N</sup>
Discussion
2.

If X(k) discrete Fourier transform of x(n), then the inverse discrete Fourier transform of X(k) is?

A. ( frac{1}{N} sum_{k=0}^{N-1}X(k)e^{-j2 kn/N} )
B. ( sum_{k=0}^{N-1}X(k)e^{-j2 kn/N} )
C. ( sum_{k=0}^{N-1}X(k)e^{j2 kn/N} )
D. ( frac{1}{N} sum_{k=0}^{N-1}X(k)e^{j2 kn/N} )
Answer» E.
Discussion
3.

If x(n) is a finite duration sequence of length L, then the discrete Fourier transform X(k) of x(n) is given as ____________

A. ( sum_{n=0}^{N-1}x(n)e^{-j2 kn/N} )(L&lt;N)(k=0,1,2 N-1)
B. ( sum_{n=0}^{N-1}x(n)e^{j2 kn/N} )(L&lt;N)(k=0,1,2 N-1)
C. ( sum_{n=0}^{N-1}x(n)e^{j2 kn/N} )(L&gt;N)(k=0,1,2 N-1)
D. ( sum_{n=0}^{N-1}x(n)e^{-j2 kn/N} )(L&gt;N)(k=0,1,2 N-1)
Answer» B. ( sum_{n=0}^{N-1}x(n)e^{j2 kn/N} )(L&lt;N)(k=0,1,2 N-1)
Discussion