MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 14 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. |
Which of the following filters have a cascade realization as shown below? |
| A. | IIR filter |
| B. | Comb filter |
| C. | High pass filter |
| D. | FIR filter |
| Answer» E. | |
| 2. |
When the desired frequency response characteristic of the FIR filter is narrowband, most of the gain parameters {H(k+α)} are zero. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Where does the poles of the system function of the second filter locate? |
| A. | ej2π(k+α)M |
| B. | ej2π(k+α)/M |
| C. | ej2π(k-α)/M |
| D. | ejπ(k+α)/M |
| Answer» C. ej2π(k-α)/M | |
| 4. |
What is the system function of the second filter other than comb filter in the realization of FIR filter? |
| A. | \(\sum_{k=0}^M \frac{H(k+α)}{1-e^{\frac{j2π(k+α)}{M}} z^{-1}}\) |
| B. | \(\sum_{k=0}^{M-1} \frac{H(k+α)}{1+e^{\frac{j2π(k+α)}{M}} z^{-1}}\) |
| C. | \(\sum_{k=0}^{M-1} \frac{H(k+α)}{1-e^{\frac{j2π(k+α)}{M}} z^{-1}}\) |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 5. |
The zeros of the system function of comb filter are located at ______________ |
| A. | Inside unit circle |
| B. | On unit circle |
| C. | Outside unit circle |
| D. | None of the mentioned |
| Answer» C. Outside unit circle | |
| 6. |
What is the system function of all-zero filter or comb filter? |
| A. | \(\frac{1}{M}(1+z^{-M} e^{j2πα})\) |
| B. | \(\frac{1}{M}(1+z^M e^{j2πα})\) |
| C. | \(\frac{1}{M}(1-z^M e^{j2πα})\) |
| D. | \(\frac{1}{M}(1-z^{-M} e^{j2πα})\) |
| Answer» E. | |
| 7. |
The realization of FIR filter by frequency sampling realization can be viewed as cascade of how many filters? |
| A. | Two |
| B. | Three |
| C. | Four |
| D. | None of the mentioned |
| Answer» B. Three | |
| 8. |
The desired frequency response is specified at a set of equally spaced frequencies defined by the equation? |
| A. | \(\frac{\pi}{2M}\)(k+α) |
| B. | \(\frac{\pi}{M}\)(k+α) |
| C. | \(\frac{2\pi}{M}\)(k+α) |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 9. |
By combining two pairs of poles to form a fourth order filter section, by what factor we have reduced the number of multiplications? |
| A. | 25% |
| B. | 30% |
| C. | 40% |
| D. | 50% |
| Answer» E. | |
| 10. |
What is the condition of M, if the structure according to the direct form is as follows? |
| A. | M even |
| B. | M odd |
| C. | All values of M |
| D. | Doesn’t depend on value of M |
| Answer» C. All values of M | |
| 11. |
The direct form realization is often called a transversal or tapped-delay-line filter. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
How many memory locations are used for storage of the output point of a sequence of length M in direct form realization? |
| A. | M+1 |
| B. | M |
| C. | M-1 |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 13. |
Which of the following is an method for implementing an FIR system? |
| A. | Direct form |
| B. | Cascade form |
| C. | Lattice structure |
| D. | All of the mentioned |
| Answer» E. | |
| 14. |
In general, an FIR system is described by the difference equation y(n)=\(\sum_{k=0}^{M-1}b_k x(n-k)\). |
| A. | True |
| B. | False |
| Answer» B. False | |