MCQOPTIONS
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MCQOPTIONS
| 1. |
What is the energy density spectrum of the signal x(n)=anu(n), |a|<1? |
| A. | 1/(1+2acosω+a<sup>2</sup> ) |
| B. | 1/(1-2acosω+a<sup>2</sup> ) |
| C. | 1/(1-2acosω-a<sup>2</sup> ) |
| D. | 1/(1+2acosω-a<sup>2</sup> ) |
| Answer» C. 1/(1-2acos‚âà√¨‚àö¬¢-a<sup>2</sup> ) | |