| Line 5: | Line 5: | ||
==Signal Energy Example== | ==Signal Energy Example== | ||
<math>E = \int_{0}^{4\pi}\!|sin(t)|^2dt</math> | <math>E = \int_{0}^{4\pi}\!|sin(t)|^2dt</math> | ||
| + | |||
| + | <math>E = \int_{0}^{4\pi}\!(\frac{1-cos(2t)}{2})dt</math> | ||
| + | |||
| + | <math>E = 2 \pi - \frac{1}{4}\sin(8\pi)</math> | ||
Revision as of 18:27, 5 September 2008
Signal Energy
$ E = \int_{t_1}^{t_2}\!|x(t)|^2dt $
Signal Energy Example
$ E = \int_{0}^{4\pi}\!|sin(t)|^2dt $
$ E = \int_{0}^{4\pi}\!(\frac{1-cos(2t)}{2})dt $
$ E = 2 \pi - \frac{1}{4}\sin(8\pi) $
Power
$ P={1\over(t_2-t_1)}\int_{t_1}^{t_2}\!|x(t)|^2dt $
