(New page: first, <math>e^{2jt}\rightarrow system\rightarrow t*e^{-2jt}</math> <math>e^{-2jt}\rightarrow system\rightarrow t*e^{2jt}</math>) |
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first, | first, | ||
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| + | <math>e^{2jt}=cos(2t) + jsin(2t)</math> | ||
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| + | <math>e^{-2jt}=cos(2t) - jsin(2t)</math> | ||
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<math>e^{2jt}\rightarrow system\rightarrow t*e^{-2jt}</math> | <math>e^{2jt}\rightarrow system\rightarrow t*e^{-2jt}</math> | ||
<math>e^{-2jt}\rightarrow system\rightarrow t*e^{2jt}</math> | <math>e^{-2jt}\rightarrow system\rightarrow t*e^{2jt}</math> | ||
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| + | input is | ||
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| + | <math>x(t)=\cos(2t)</math> | ||
Revision as of 05:23, 18 September 2008
first,
$ e^{2jt}=cos(2t) + jsin(2t) $
$ e^{-2jt}=cos(2t) - jsin(2t) $
$ e^{2jt}\rightarrow system\rightarrow t*e^{-2jt} $
$ e^{-2jt}\rightarrow system\rightarrow t*e^{2jt} $
input is
$ x(t)=\cos(2t) $
