Consider the signal x(t) = 5+ cos(21000ot) + 4sin(2n3000t) sampled at the rate of 8000 Hz, a. Sketch the magnitude spectrum ofl the sampled signal from 0 to 20 khz b. Sketch the recovered analog signal's bilateral spectrum if an ideal lowpass filter with a cutoff frequency of 4 khz is used to filter the sampled signal as the main recovery process.
Consider the signal x(t) = 5+ cos(21000ot) + 4sin(2n3000t) sampled at the rate of 8000 Hz, a. Sketch the magnitude spectrum ofl the sampled signal from 0 to 20 khz b. Sketch the recovered analog signal's bilateral spectrum if an ideal lowpass filter with a cutoff frequency of 4 khz is used to filter the sampled signal as the main recovery process.
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Transcribed Image Text:Consider the signal x(t)= 5+ cos(2r1000t) + 4sin(2n3000t) sampled at the rate of 8000 Hz,
a. Sketch the magnitude spectrum ofl the sampled signal from 0 to 20 khz
b. Sketch the recovered analog signal's bilateral spectrum if an ideal lowpass filter with a cutoff
frequency of 4 khz is used to filter the sampled signal as the main recovery process.
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