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| − | + | == Guess the Periodic Signal Question == | |
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| + | Suppose a DT singal satisfies the following properties: | ||
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| + | 1. x[n] is periodic with period 4 and has Fourier coefficients <math>\,a_k\,</math>. | ||
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| + | 2. <math>\,\sum_{n=0}^{3}x[n]=4\,</math> | ||
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| + | 3. The Fourier coefficients <math>\,a_1\,</math> and <math>\,a_3\,</math> are equal. | ||
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| + | 4. The value of the signal at <math>\,t=0\,</math> is zero. | ||
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| + | 5. Bleck!? | ||
Revision as of 19:52, 25 September 2008
Guess the Periodic Signal Question
Suppose a DT singal satisfies the following properties:
1. x[n] is periodic with period 4 and has Fourier coefficients $ \,a_k\, $.
2. $ \,\sum_{n=0}^{3}x[n]=4\, $
3. The Fourier coefficients $ \,a_1\, $ and $ \,a_3\, $ are equal.
4. The value of the signal at $ \,t=0\, $ is zero.
5. Bleck!?
