Which of the following waveforms represnts pulse position modulated wave for the given sinusodial analog signal ?
none
As we have learned
Pulse position modulation (PPM) -
The position of the pulses of the carrier wave train is varied in accordance with the instantaneous value of the modulating signal.
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In PPM wave ,amplitude and width of the pulse is kept constant .Every sample is represented by two pulse one leading and one trailing pulse
Distance between the two pulse shall be proportional to the amplitude of the signal at that instant Hence (3)
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