MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
What is the approximate transition width of main lobe of a Hamming window? |
| A. | 4π/M |
| B. | 8π/M |
| C. | 12π/M |
| D. | 2π/M |
| Answer» C. 12π/M | |
| 2. |
The width of each side lobes decreases with an decrease in M. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Which of the following windows has a time domain sequence h(n)=\(1-\frac{2|n-\frac{M-1}{2}|}{M-1}\)? |
| A. | Bartlett window |
| B. | Blackman window |
| C. | Hanning window |
| D. | Hamming window |
| Answer» B. Blackman window | |
| 4. |
As M is increased, W(ω) becomes wider and the smoothening produced by the W(ω) is increased. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
With an increase in the value of M, the height of each side lobe ____________ |
| A. | Do not vary |
| B. | Does not depend on value of M |
| C. | Decreases |
| D. | Increases |
| Answer» E. | |
| 6. |
The width of each side lobes decreases with an increase in M. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
What is the width of the main lobe of the frequency response of a rectangular window of length M-1? |
| A. | π/M |
| B. | 2π/M |
| C. | 4π/M |
| D. | 8π/M |
| Answer» D. 8π/M | |
| 8. |
What is the magnitude response |W(ω)| of a rectangular window function? |
| A. | \(\frac{|sin(ωM/2)|}{|sin(ω/2)|}\) |
| B. | \(\frac{|sin(ω/2)|}{|sin(ωM/2)|}\) |
| C. | \(\frac{|cos(ωM/2)|}{|sin(ω/2)|}\) |
| D. | None of the mentioned |
| Answer» B. \(\frac{|sin(ω/2)|}{|sin(ωM/2)|}\) | |
| 9. |
What is the Fourier transform of the rectangular window of length M-1? |
| A. | \(e^{jω(M-1)/2} \frac{sin(\frac{ωM}{2})}{sin(\frac{ω}{2})}\) |
| B. | \(e^{jω(M+1)/2} \frac{sin(\frac{ωM}{2})}{sin(\frac{ω}{2})}\) |
| C. | \(e^{-jω(M+1)/2} \frac{sin(\frac{ωM}{2})}{sin(\frac{ω}{2})}\) |
| D. | \(e^{-jω(M-1)/2} \frac{sin(\frac{ωM}{2})}{sin(\frac{ω}{2})}\) |
| Answer» E. | |
| 10. |
The multiplication of the window function w(n) with h(n) is equivalent to the multiplication of H(w) and W(w). |
| A. | True |
| B. | False |
| Answer» C. | |