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Explain The Principle Of Ppm? |
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Answer» The amplitude and the width of the pulse is kept constant in this system, while the position of each pulse, in relation to the position of a recurrent reference pulse is varied by each INSTANTANEOUS sampled value of the modulating WAVE. This means that the transmitter must send SYNCHRONIZING PULSES to operate timing circuits in the receiver. The PPM has the advantage of reuiring constant transmitter power output, but the disadvantage of depending on transmitterreceiver synchronization. The amplitude and the width of the pulse is kept constant in this system, while the position of each pulse, in relation to the position of a recurrent reference pulse is varied by each instantaneous sampled value of the modulating wave. This means that the transmitter must send synchronizing pulses to operate timing circuits in the receiver. The PPM has the advantage of reuiring constant transmitter power output, but the disadvantage of depending on transmitterreceiver synchronization. |
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