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If the synchronization between transmitter and receiver fails which of the following pulse systems would be affected?

If the synchronization between transmitter and receiver fails which of the following pulse systems would be affected? Correct Answer PPM

In PPM, data transmitted in short pulses have the same width and amplitude. The PPM changes the delay between pulses hence PPM needs synchronisation.

Comparison of different Pulse Modulation Techniques:

S.no.

Parameter

PAM

PWM

PPM

1

Type of carrier

Train of Pulses

Train of Pulses

Train of Pulses

2

Variable characteristic of carrier

Amplitude

Width

Position

3

Noise Immunity

Low

High

High

4

Need Synchronisation

NO

No

Yes

5

Similarity with analogue modulation techniques

AM

FM

PM

6

Bandwidth requirement

Low

High

High

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