MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 11 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 sensitivity analysis made on the poles of a system results on which of the following of the IIR filters? |
| A. | Poles |
| B. | Zeros |
| C. | Poles & Zeros |
| D. | None of the mentioned |
| Answer» C. Poles & Zeros | |
| 2. |
Which of the following is the expression for \(\frac{∂p_i}{∂a_k}\)? |
| A. | \(\frac{-p_i^{N+k}}{\prod_{l=1}^n p_i-p_l}\) |
| B. | \(\frac{p_i^{N-k}}{\prod_{l=1}^n p_i-p_l}\) |
| C. | \(\frac{-p_i^{N-k}}{\prod_{l=1}^n p_i-p_l}\) |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 3. |
What is the expression for the perturbation error Δpi? |
| A. | \(\sum_{k=1}^N \frac{∂p_i}{∂a_k} \Delta a_k\) |
| B. | \(\sum_{k=1}^N p_i \Delta a_k\) |
| C. | \(\sum_{k=1}^N \Delta a_k\) |
| D. | None of the mentioned |
| Answer» B. \(\sum_{k=1}^N p_i \Delta a_k\) | |
| 4. |
If pk is the set of poles of H(z), then what is Δpk that is the error resulting from the quantization of filter coefficients? |
| A. | Pre-turbation |
| B. | Perturbation |
| C. | Turbation |
| D. | None of the mentioned |
| Answer» C. Turbation | |
| 5. |
Which of the following is the equivalent representation of the denominator of the system function of a general IIR filter? |
| A. | \(\prod_{k=1}^N (1+p_k z^{-1})\) |
| B. | \(\prod_{k=1}^N (1+p_k z^{-k})\) |
| C. | \(\prod_{k=1}^N (1-p_k z^{-k})\) |
| D. | \(\prod_{k=1}^N (1-p_k z^{-1})\) |
| Answer» E. | |
| 6. |
The system function of a general IIR filter is given as H(z)=\(\frac{\sum_{k=0}^M b_k z^{-k}}{1+\sum_{k=1}^N a_k z^{-k}}\). |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
THE_SENSITIVITY_ANALYSIS_MADE_ON_THE_POLES_OF_A_SYSTEM_RESULTS_ON_WHICH_OF_THE_FOLLOWING_OF_THE_IIR_FILTERS??$ |
| A. | Poles |
| B. | Zeros |
| C. | Both of the mentioned |
| D. | None of the mentioned |
| Answer» C. Both of the mentioned | |
| 8. |
Which of the following operation has to be done on the lengths of |pi-pl| in order to reduce the perturbation errors? |
| A. | Maximize |
| B. | Equalize |
| C. | Minimize |
| D. | None of the mentioned |
| Answer» B. Equalize | |
| 9. |
If the poles are tightly clustered as they are in a narrow band filter, the lengths of |pi-pl| are large for the poles in the vicinity of pi. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
If pk is the set of poles of H(z), then what is Δpk that is the error resulting from the quantization of filter coefficients?$ |
| A. | Pre-turbation |
| B. | Perturbation |
| C. | Turbation |
| D. | None of the mentioned |
| Answer» C. Turbation | |
| 11. |
If ak is the filter coefficient and a ̅k represents the quantized coefficient with Δak as the quantization error, then which of the following equation is true?$ |
| A. | a ̅k = ak. Δak |
| B. | a ̅k = ak/Δak |
| C. | a ̅k = ak + Δak |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |