MCQOPTIONS
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MCQOPTIONS
This section includes 4 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 g(n) is a real valued sequence of 2N points and x1(n)=g(2n) and x2(n)=g(2n+1), then what is the value of G(k), k=N,N-1,…2N-1? |
| A. | X1(k)-W2kX2(k) |
| B. | X1(k)+W2kNX2(k) |
| C. | X1(k)+W2kX2(k) |
| D. | X1(k)-W2kNX2(k) |
| Answer» E. | |
| 2. |
If g(n) is a real valued sequence of 2N points and x1(n)=g(2n) and x2(n)=g(2n+1), then what is the value of G(k), k=0,1,2…N-1? |
| A. | X1(k)-W2kNX2(k) |
| B. | X1(k)+W2kNX2(k) |
| C. | X1(k)+W2kX2(k) |
| D. | X1(k)-W2kX2(k) |
| Answer» C. X1(k)+W2kX2(k) | |
| 3. |
If X(k) is the DFT of x(n) which is defined as x(n)=x1(n)+jx2(n), 0≤ n≤ N-1, then what is the DFT of x1(n)? |
| A. | \(\frac{1}{2} [X*(k)+X*(N-k)]\) |
| B. | \(\frac{1}{2} [X*(k)-X*(N-k)]\) |
| C. | \(\frac{1}{2j} [X*(k)-X*(N-k)]\) |
| D. | \(\frac{1}{2j} [X*(k)+X*(N-k)]\) |
| Answer» B. \(\frac{1}{2} [X*(k)-X*(N-k)]\) | |
| 4. |
If x1(n) and x2(n) are two real valued sequences of length N, and let x(n) be a complex valued sequence defined as x(n)=x1(n)+jx2(n), 0≤n≤N-1, then what is the value of x1(n)? |
| A. | \(\frac{x(n)-x^* (n)}{2}\) |
| B. | \(\frac{x(n)+x^* (n)}{2}\) |
| C. | \(\frac{x(n)-x^* (n)}{2j}\) |
| D. | \(\frac{x(n)+x^* (n)}{2j}\) |
| Answer» C. \(\frac{x(n)-x^* (n)}{2j}\) | |