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== Homework 2 Part A-1== | == Homework 2 Part A-1== | ||
| − | < | + | <br> |
I chose the signal: | I chose the signal: | ||
| − | < | + | <br> |
<math>y = cos(n)\,</math> | <math>y = cos(n)\,</math> | ||
| − | < | + | <br> |
When I took a sample at 1 hz, the signal was non-periodic and ugly. | When I took a sample at 1 hz, the signal was non-periodic and ugly. | ||
| + | <br> | ||
Therefore it is not periodic. | Therefore it is not periodic. | ||
| − | + | ||
[[Image:Non-periodic.jpg_ECE301Fall2008mboutin]] | [[Image:Non-periodic.jpg_ECE301Fall2008mboutin]] | ||
| − | Changing the function to:<math>y = cos(n*pi/2)\,</math><br> | + | <br>Changing the function to:<math>y = cos(n*pi/2)\,</math><br> |
made the signal look periodic. | made the signal look periodic. | ||
Revision as of 09:52, 11 September 2008
Homework 2 Part A-1
I chose the signal:
$ y = cos(n)\, $
When I took a sample at 1 hz, the signal was non-periodic and ugly.
Therefore it is not periodic.
File:Non-periodic.jpg ECE301Fall2008mboutin
Changing the function to:$ y = cos(n*pi/2)\, $
made the signal look periodic.
