MCQOPTIONS
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MCQOPTIONS
This section includes 13 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. |
In Parks-McClellan program, an array of maximum size 10 that specifies the desired frequency response in each band is denoted by? |
| A. | WTX |
| B. | FX |
| C. | EDGE |
| D. | None of the mentioned |
| Answer» C. EDGE | |
| 2. |
In Parks-McClellan program, the grid density for interpolating the error function is denoted by which of the following functions? |
| A. | NFILT |
| B. | NBANDS |
| C. | EDGE |
| D. | LGRID |
| Answer» E. | |
| 3. |
What is the value of JTYPE in the Parks-McClellan program for a Hilbert transformer? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |
| 4. |
If |E( )|< for some frequencies on the dense set, then a new set of frequencies corresponding to the L+2 largest peaks of |E( )| are selected and computation is repeated. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
If M is the length of the filter, then at how many number of points, the error function is computed? |
| A. | 2M |
| B. | 4M |
| C. | 8M |
| D. | 16M |
| Answer» E. | |
| 6. |
The filter designs that contain more than L+2 alternations are called as ______________ |
| A. | Extra ripple filters |
| B. | Maximal ripple filters |
| C. | Equi ripple filters |
| D. | None of the mentioned |
| Answer» B. Maximal ripple filters | |
| 7. |
At most how many extremal frequencies can be there in the error function of ideal low pass filter? |
| A. | L+1 |
| B. | L+2 |
| C. | L+3 |
| D. | L |
| Answer» D. L | |
| 8. |
The error function E( ) does not alternate in sign between two successive extremal frequencies. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Which of the following defines the weighted approximation error? |
| A. | W( )[H<sub>dr</sub>( )+H<sub>r</sub>( )] |
| B. | W( )[H<sub>dr</sub>( )-H<sub>r</sub>( )] |
| C. | W( )[H<sub>r</sub>( )-H<sub>dr</sub>( )] |
| D. | None of the mentioned |
| Answer» C. W( )[H<sub>r</sub>( )-H<sub>dr</sub>( )] | |
| 10. |
It is convenient to normalize W( ) to unity in the stop band and set W( )= 2/ 1 in the pass band. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
If the filter has anti-symmetric unit sample response with M even, then what is the value of Q( )? |
| A. | cos( /2) |
| B. | sin( /2) |
| C. | 1 |
| D. | sin |
| Answer» C. 1 | |
| 12. |
If 2 represents the ripple in the stop band for a chebyshev filter, then which of the following conditions is true? |
| A. | 1- <sub>2</sub> H<sub>r</sub>( ) 1+ <sub>2</sub>;| | <sub>s</sub> |
| B. | 1+ <sub>2</sub> H<sub>r</sub>( ) 1- <sub>2</sub>;| | <sub>s</sub> |
| C. | <sub>2</sub> H<sub>r</sub>( ) <sub>2</sub>;| | <sub>s</sub> |
| D. | - <sub>2</sub> H<sub>r</sub>( ) <sub>2</sub>;| | <sub>s</sub> |
| Answer» E. | |
| 13. |
Which of the following filter design is used in the formulation of design of optimum equi ripple linear phase FIR filter? |
| A. | Butterworth approximation |
| B. | Chebyshev approximation |
| C. | Hamming approximation |
| D. | None of the mentioned |
| Answer» C. Hamming approximation | |