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I chose the signal <math> x[n]=e^{j\pi n} \,</math> which Jeff Kubascik posted on his HW1. | I chose the signal <math> x[n]=e^{j\pi n} \,</math> which Jeff Kubascik posted on his HW1. | ||
| − | Recall that this signal is periodic if <math>T = {\omega_0\over2\pi}\,</math> is rational. | + | Recall that this signal is periodic if <math>T = {\omega_0\over2\pi}\,</math> is rational. |
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| + | Say I choose the sampling frequency <math>Ts=.1</math> | ||
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| + | The output will be: | ||
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| + | But if I choose the sampling frequency to be <math>Ts=.7</math> | ||
Revision as of 08:18, 11 September 2008
Question 1
I chose the signal $ x[n]=e^{j\pi n} \, $ which Jeff Kubascik posted on his HW1.
Recall that this signal is periodic if $ T = {\omega_0\over2\pi}\, $ is rational.
Say I choose the sampling frequency $ Ts=.1 $
The output will be:
But if I choose the sampling frequency to be $ Ts=.7 $
