Pulse Position
Modulation
Cuthbert Nyack
A PPM signal and how it changes with amplitude and frequency of the
modulating signal is shown in the applet below. The short lines
above the pulses show where they would be in the absence of modulation.
As in PAM and PWM
the carrier is a pulse train and as in PWM each component of the
carrier's spectrum becomes something similar to an FM spectrum.
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COPYRIGHT © 1996 Cuthbert Nyack.