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ECE · Q177

Communication Systems

Engineering and GATE · ECE · question 177

Q177

An arbitrary signal m(t) has zero average value and it is band-limited to 3.2 kHz. It is sampled at the rate of 8 k samples/s. The samples are passed through an ideal band-pass filter with centre frequency of 32 kHz and bandwidth of 6.4 kHz. The output of the band-pass filter is

A.
AM-DSB signal with suppressed carrier
Answer
B.
AM-DSB signal with carrier
C.
AM-SSB signal with carrier
D.
a sequence of exponentially decaying sine waves

Answer: Option A

Solution

Answer: Option A
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