assignments:a1
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| assignments:a1 [2012/09/13 20:14] – marash | assignments:a1 [2013/09/04 21:19] (current) – marash | ||
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| Problem 1.15 (i) and (iii) | Problem 1.15 (i) and (iii) | ||
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| + | **Hints for Problem 1.5 part (v)** | ||
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| + | Note that: | ||
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| + | - All CT complex exponentials are periodic. | ||
| + | - A real valued exponential signal is not periodic. | ||
| + | - Sum of a periodic signal and an aperiodic signal is not periodic. | ||
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| **Hints for Problem 1.5 part (vi)** | **Hints for Problem 1.5 part (vi)** | ||
| - | Please consider the following points: | + | Note that: |
| - Sum of a periodic signal and an aperiodic signal is not periodic. | - Sum of a periodic signal and an aperiodic signal is not periodic. | ||
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| * sin^2(t) = 1/2(1 − cos(2t)) | * sin^2(t) = 1/2(1 − cos(2t)) | ||
| * cos(a)cos(b) = 1/ | * cos(a)cos(b) = 1/ | ||
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| + | **Problem 1.15** | ||
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| + | There is a typo and the correct one is as follows: | ||
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| + | x1[k] = sin(4k)+cos(2*pi*k/ | ||
assignments/a1.1347567255.txt.gz · Last modified: 2012/09/13 20:14 by marash