| Line 8: | Line 8: | ||
Energy of a DT Signal | Energy of a DT Signal | ||
</pre> | </pre> | ||
| − | <math> E | + | <math> E \,\!</math> |
<math>= \sum_{n=0}^\inf a_n x^n </math> | <math>= \sum_{n=0}^\inf a_n x^n </math> | ||
<math>= \left | \frac{a}{b} \right | | <math>= \left | \frac{a}{b} \right | | ||
Revision as of 18:54, 5 September 2008
Energy of a CT Signal
$ Energy = \int_{t1}^{t2} \left | \frac{x}{1} \right |\ ^2 dx $
Energy of a DT Signal
$ E \,\! $ $ = \sum_{n=0}^\inf a_n x^n $
$ = \left | \frac{a}{b} \right | $
