1.

For demodulation of PCM, it is first converted into ________(a) PAM(b) PWM(c) PPM(d) FMI had been asked this question in a job interview.I would like to ask this question from Generation of VSB topic in section SSB Modulation of Analog Communications

Answer»

Correct option is (a) PAM

To EXPLAIN I would say: Pulse CODE Modulation deals with converting an analog signal to a digital signal. During it’s demodulation, the WAVE to be treated is to be parallel. The series pulse wave signal is then converted into a parallel digital signal using a serial to parallel converter, after which it is further converted into the original analog signal with the help of a decoder or detector.



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