(→DT signal & its Fourier Coefficients) |
(→DT signal & its Fourier Coefficients) |
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== DT signal & its Fourier Coefficients == | == DT signal & its Fourier Coefficients == | ||
| − | <math>\ x[n] = 5sin(3 \pi n + \frac | + | <math>\ x[n] = 5sin(3 \pi n + \frac{\pi}{4})</math> |
Knowing its Fourier series is | Knowing its Fourier series is | ||
| − | <math>\ x[n] = \frac{5}{2j} (e^{j (3\pi n + \frac | + | <math>\ x[n] = \frac{5}{2j} (e^{j (3\pi n + \frac{\pi}{4})}-e^{-j (3\pi n + \frac{\pi}{4})}) |
Revision as of 16:20, 26 September 2008
DT signal & its Fourier Coefficients
$ \ x[n] = 5sin(3 \pi n + \frac{\pi}{4}) $
Knowing its Fourier series is
$ \ x[n] = \frac{5}{2j} (e^{j (3\pi n + \frac{\pi}{4})}-e^{-j (3\pi n + \frac{\pi}{4})}) $
