(New page: == A CT periodic signal sampled at different frequencies == It is known that y=cos(x) in CT is a periodic function, and this periodic CT function was sampled at different frequencies in ...) |
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| + | [[Image:periodicss_ECE301Fall2008mboutin.jpg]] | ||
| + | FIGURE(1) | ||
| + | shows a periodic DT graph | ||
| + | |||
| + | [[Image:Aperiodic_ECE301Fall2008mboutin.jpg]] | ||
| + | FIGURE(2) | ||
| + | not a periodic graph | ||
Revision as of 15:08, 12 September 2008
A CT periodic signal sampled at different frequencies
It is known that y=cos(x) in CT is a periodic function, and this periodic CT function was sampled at different frequencies in DT.
n=1:1:40 %%%%%%%%DT input%%%%%%%%% y=cos(pi/8*n); figure(1) plot(n,y) y2=cos(3*n); figure(2) plot(n,y2)
FIGURE(1)
shows a periodic DT graph
FIGURE(2)
not a periodic graph
