### What is highest freq input signal that will not be aliased

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##### Reference no: EM13276065

suppose that A/D-H(z)-D/A system shown uses a sampling rate of 20000 samples/sec , let xa(t)=10cos (2p*500t)u(t)
a- give another input signal x1(t) which gives the same samples x(n)
b- give another input signal x2(t) which gives the same frequency (digital) for x(n) but has a phase reversal
c- what is the highest frequency input signal that will not be aliased ?
d- if H(z)=1/z-.5, find the steady state output ya(t) for the input xa(t) given above
e- if H(z) =1/z-.05 ,find the steady state output ya(t) for an input xa(t)=2u(t)
plot the magnitude of frequency response /He(jw)/ for e discrete time filter chatctrized by the H(z) given in d plot the equvalent analog frequency response for the AD-H(z)-DA structure using the H(z) of d repeat with sampling rate of 40000  samples/sec.

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