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==Continuous Time== | ==Continuous Time== | ||
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==Periodic== | ==Periodic== | ||
A signal is periodic if there exists some T>0 such that: | A signal is periodic if there exists some T>0 such that: | ||
Revision as of 08:53, 5 September 2008
Continuous Time
Periodic
A signal is periodic if there exists some T>0 such that: $ x(t) = x(t+T) $
-Consider $ x(t) = sin(t) $ from 0 to 8pi
Non-Periodic
A signal is NOT periodic if the converse is true, there exists some T>0 such that: x(t) ≠ x(t+T)
-Consider $ x(t) = e^{-t/20} * sin(2t) $
