Which modulation uses the position of a pulse to convey information? (

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Module 4: Pulse Modulation-I

20252m

Which modulation uses the position of a pulse to convey information?
(i) PAM
(ii) PCM
(iii) PPM
(iv) PWM

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Answer

Correct Option: (iii) PPM

Explanation

PAM varies amplitude, PWM varies width, PPM varies position of pulse relative to reference. PPM constant amplitude → better noise immunity vs PAM.

Final Answer

PPM → Option (iii).

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