Question

Assuming a continuous is given as

x(t)=10cos(2pi.5,500t)+5sin(2pi.7,500t),for t>0(greater than or equal to zero)

sampled at a rate upyo 8,000Hz,

a.sketch a spectrum of the sampled signal upto 20KHz;

b.sketch tge recovered analog signal spctrum if an ideal filter with a cutoff frequency of 4KHz is used to sampled signal if order to recover the original signal;

c.determine the frequency /frequencies of aliasing noise

Answer #1

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