(New page: ==Energy of a CT signal== <math>E = \int_{t1}^{t2} |x(t)|^2\ dt \!</math> ==Power of a CT signal== <math>P = \frac{1}{t2-t1} \int_{t2}^{t1} |f(t)|^2\ dt \!</math> ==Energy of a DT sign...) |
(→Power of a DT signal) |
||
| Line 13: | Line 13: | ||
==Power of a DT signal== | ==Power of a DT signal== | ||
| − | |||
<math>P = \frac{1}{n2-n1+1} \sum_{n=n1}^{n2} |x[n]|^2</math> | <math>P = \frac{1}{n2-n1+1} \sum_{n=n1}^{n2} |x[n]|^2</math> | ||
Revision as of 06:36, 5 September 2008
Contents
Energy of a CT signal
$ E = \int_{t1}^{t2} |x(t)|^2\ dt \! $
Power of a CT signal
$ P = \frac{1}{t2-t1} \int_{t2}^{t1} |f(t)|^2\ dt \! $
Energy of a DT signal
$ E = \sum_{n=n1}^{n2} |x[n]|^2 $
Power of a DT signal
$ P = \frac{1}{n2-n1+1} \sum_{n=n1}^{n2} |x[n]|^2 $
