MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 9 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 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 | |
| 3. |
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. | |
| 4. |
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 | |
| 5. |
What is the expression for the perturbation error pi? |
| 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 ) | |
| 6. |
If pk is the set of poles of H(z), then what is pk 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 | |
| 7. |
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. | |
| 8. |
If ak is the filter coefficient and āk represents the quantized coefficient with ak as the quantization error, then which of the following equation is true? |
| A. | &amacr;k = a<sub>k</sub>. a<sub>k</sub> |
| B. | &amacr;k = a<sub>k</sub>/ a<sub>k</sub> |
| C. | &amacr;k = a<sub>k</sub> + a<sub>k</sub> |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 9. |
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 | |