EE 351 - Discrete-time Systems01 - Discrete-Time Signals0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 0.018 0.02-5-4-3-2-1012345timexc(t) and xd[n]amplitude0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 0.018 0.02-1-0.500.51timex1(t)50 Hz Sinusoid0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 0.018 0.02-1-0.500.51timex2(t)550 Hz Sinusoid0 5 10 15 20 25 30-1-0.500.51nx[n]=cos(0n)0 5 10 15 20 25 30-1-0.500.51nx[n]=cos(pi*n/8)0 5 10 15 20 25 30-1-0.500.51nx[n]=cos(pi*n/4)0 5 10 15 20 25 30-1-0.500.51nx[n]=cos(pi*n/2)0 5 10 15 20 25 30-1-0.500.51nx[n]=cos(pi*n)0 5 10 15 20 25 30-1-0.500.51nx[n]=cos(3*pi*n/2)0 5 10 15 20 25 30-1-0.500.51nx[n]=cos(7*pi*n/4)0 5 10 15 20 25 30-1-0.500.51nx[n]=cos(15*pi*n/8)0 5 10 15 20 25
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