| Line 9: | Line 9: | ||
-Consider <math> x(t) = sin(t) </math> from 0 to 8pi | -Consider <math> x(t) = sin(t) </math> from 0 to 8pi | ||
| − | <center>[[Image: | + | <center>[[Image:sin_ECE301Fall2008mboutin.jpg|400px]]</center> |
| Line 17: | Line 17: | ||
-Consider <math> x(t) = e^{-t/20} * sin(2t) </math> | -Consider <math> x(t) = e^{-t/20} * sin(2t) </math> | ||
| − | <center>[[Image: | + | <center>[[Image:Sin_decr_ECE301Fall2008mboutin.jpg|400px]]</center> |
Latest revision as of 07:08, 14 April 2010
Contents
Periodic versus non-periodic functions (hw1, ECE301)
Read the instructor's comments here.
Continuous Time
Periodic
A signal is periodic if there exists some T>0 such that: $ x(t) = x(t+T) $
-Consider $ x(t) = sin(t) $ from 0 to 8pi
Non-Periodic
A signal is NOT periodic if the converse is true, there DOESN'T exists some T>0 such that: x(t) = x(t+T)
-Consider $ x(t) = e^{-t/20} * sin(2t) $
