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4. With the help of relevant diagrams, explain the meaning of following terms(i) Pulse amplitude modulation(ii) Pulse position modulation (PPM)(iii) Pulse duration modulation (PDM)(CBS

Answer»

Pulse Amplitude Modulationis one of the kinds ofmodulationtechniques used in signal transmission.Pulse amplitude modulationis the simplest form ofmodulation. It is Analog to digital conversion method where the message information is encoded in theamplitudeof the series of signalpulses.



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