MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Signal Processing Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If the contour on which the z-transform is evaluated is as shown below, then which of the given condition is true? |
| A. | R0>1 |
| B. | R0<1 |
| C. | R0=1 |
| D. | None of the mentioned |
| Answer» B. R0<1 | |
| 2. |
If the contour is a circle of radius r and the zk are N equally spaced points, then what is the value of zk? |
| A. | re-j2πkn/N |
| B. | rejπkn/N |
| C. | rej2πkn |
| D. | rej2πkn/N |
| Answer» E. | |
| 3. |
What is the expression to compute yk(n) recursively? |
| A. | yk(n)=WN-kyk(n+1)+x(n) |
| B. | yk(n)=WN-kyk(n-1)+x(n) |
| C. | yk(n)=WNkyk(n+1)+x(n) |
| D. | None of the mentioned |
| Answer» C. yk(n)=WNkyk(n+1)+x(n) | |
| 4. |
What is the system function of the filter with impulse response hk(n)? |
| A. | \(\frac{1}{1-W_N^{-k} z^{-1}}\) |
| B. | \(\frac{1}{1+W_N^{-k} z^{-1}}\) |
| C. | \(\frac{1}{1-W_N^k z^{-1}}\) |
| D. | \(\frac{1}{1+W_N^k z^{-1}}\) |
| Answer» B. \(\frac{1}{1+W_N^{-k} z^{-1}}\) | |
| 5. |
If yk(n) is the convolution of the finite duration input sequence x(n) of length N, then what is the impulse response of the filter? |
| A. | WN-kn |
| B. | WN-kn u(n) |
| C. | WNkn u(n) |
| D. | None of the mentioned |
| Answer» C. WNkn u(n) | |
| 6. |
If the desired number of values of the DFT is less than log2N, a direct computation of the desired values is more efficient than FFT algorithm. |
| A. | True |
| B. | False |
| Answer» B. False | |