MCQOPTIONS
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MCQOPTIONS
| 1. |
What is the variance of the difference between two successive signal samples, d(n) = x(n) x(n-1)? |
| A. | ( _d^2=2 _x^2 [1+ _{xx} (1)] ) |
| B. | ( _d^2=2 _x^2 [1- _{xx} (1)] ) |
| C. | ( _d^2=4 _x^2 [1- _{xx} (1)] ) |
| D. | ( _d^2=3 _x^2 [1- _{xx} (1)] ) |
| Answer» C. ( _d^2=4 _x^2 [1- _{xx} (1)] ) | |