(New page: = Discrete Fourier Transform = Definition: let x[n] be a DT signal with Period N. <math> X [k] = \sum_{k=0}^{N-1} x[n].e^{-J.2pi.kn/N}</math> <math> x [n] = (1/N) \sum_{k=0}^{N-1} X[k]...) |
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<math> x [n] = (1/N) \sum_{k=0}^{N-1} X[k].e^{J.2pi.kn/N}</math> | <math> x [n] = (1/N) \sum_{k=0}^{N-1} X[k].e^{J.2pi.kn/N}</math> | ||
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| − | [[ | + | [[Collective_Table_of_Formulas|Back to Collective Table]] |
Revision as of 05:43, 7 September 2010
Discrete Fourier Transform
Definition: let x[n] be a DT signal with Period N.
$ X [k] = \sum_{k=0}^{N-1} x[n].e^{-J.2pi.kn/N} $
$ x [n] = (1/N) \sum_{k=0}^{N-1} X[k].e^{J.2pi.kn/N} $
