(→Non-Periodic Signal) |
(→Periodic Signal) |
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Above is an example of a periodic signal: <math>y(t) = \sin(\pi t)</math> | Above is an example of a periodic signal: <math>y(t) = \sin(\pi t)</math> | ||
| − | The function is periodic because as can be seen from the graph <math>y(t+T)=y(t)</math> where T=2 seconds. | + | The function is periodic because as can be seen from the graph <math>y(t+T)= y(t)</math> where T=2 seconds. |
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==Non-Periodic Signal== | ==Non-Periodic Signal== | ||
Revision as of 14:53, 5 September 2008
Periodic Signal
Above is an example of a periodic signal: $ y(t) = \sin(\pi t) $
The function is periodic because as can be seen from the graph $ y(t+T)= y(t) $ where T=2 seconds.
Non-Periodic Signal
Represented above is an example of a non-periodic function: $ y(t)=sin(10 \pi \ln(t)) $. This function is clearly not periodic because the frequency changes with time and therefore $ y(t+T)\ne y(t) $.
