A system samples a sinusoid of frequency 1,100 Hz at a rate of 100 Hz and writes

Question

A system samples a sinusoid of frequency 1,100 Hz at a rate of 100 Hz and writes the sampled signal to its output without further modification. Determine the frequency that the sampling system will generate in its output. 1,100 0 50 100 (TCO 4) A signal consists of only two sinusoids, one of 35 Hz and one of 70 Hz. This signal is sampled at a rate of 210 Hz. Find the first six positive frequencies that will be present in the replicated spectrum. 35, 70, 140, 175, 245, 280 35, 70, 105, 210, 245, 280 35, 70, 145, 170, 195, 280 35, 70, 140, 175, 210, 270

Explanation / Answer

1)c

output depends only on sampling frequency

output frequency=sampling frequency/2=100/2=50

2)a

freuencies are given by formula

f=35,70,210-70,210-35,210+35,210+70

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