(→Part 1) |
|||
| Line 13: | Line 13: | ||
==Part 2== | ==Part 2== | ||
| + | choose [[image:dtsignal.jpg|300px|frame|center]] | ||
| + | This is <math>x(t)</math> | ||
Revision as of 13:17, 12 September 2008
Part 1
Choose the signal $ x(t)=cos(t) $ which is periodic.
File:Ctsignal.jpg
300px
Sampling ever interger yields
File:Dtsignal.jpg
300px
This is $ x[n]=cos(n) $
but sampling at a frequency of $ \pi/4 $ yields
File:Dtsignal1.jpg
300px
This is $ x[n]=cos(\pi/4n) $
Part 2
chooseFile:Dtsignal.jpg
300px
This is $ x(t) $
