| Line 1: | Line 1: | ||
| + | |||
| + | |||
== Periodic DT Signal == | == Periodic DT Signal == | ||
| − | |||
<math>x[n]=-\frac{1}{2}cos(3\pi n)+sin(3\pi n)\!</math>. | <math>x[n]=-\frac{1}{2}cos(3\pi n)+sin(3\pi n)\!</math>. | ||
Revision as of 15:36, 26 September 2008
Periodic DT Signal
$ x[n]=-\frac{1}{2}cos(3\pi n)+sin(3\pi n)\! $.
Fourier Series Coefficients
$ x[n]=-\frac{1}{2}[\frac{e^{j3\pi n}+e^{-j3\pi n}}{2}]+\frac{e^{j3\pi n}-e^{-3\pi n}}{j2} $
$ x[n]=-\frac{1}{4}e^{j3\pi n}-\frac{1}{4}e^{-j3\pi n}+\frac{1}{j2}e^{3\pi n}-\frac{1}{j2}e^{-j3\pi n} $
