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Discussion

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

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

Answer: B

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