Revision as of 11:49, 12 September 2008 by Nchopra (Talk)

Part 1

Periodic signal Sampling the signal at a frequency that is a rational multiple of the frequency of the signal will result in a periodic Discrete Time signal. Sampling the signal at a frequency that is not a rational multiple of the frequency of the signal will result in a non-periodic Discrete Time signal.

My all time favorite periodic signal- Sin(t)

t  = 0:0.02:10; 
x = sin(t);
plot(t,x)
grid on

File:SIN.jpg

Periodic signal turned Non-Periodic

File:SINNP

Part 2

Non-Periodic Signal File:NP Non-Periodic Signal turned Periodic Y=X File:NPTP

Alumni Liaison

has a message for current ECE438 students.

Sean Hu, ECE PhD 2009