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Energy of a DT Signal | Energy of a DT Signal | ||
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| − | <math>= \sum_{n= | + | <math>= \sum_{n=n1}^n \left | \frac{x[n]}{1} \right | ^2 </math> |
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Latest revision as of 19:00, 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=n1}^n \left | \frac{x[n]}{1} \right | ^2 $
