Pulse-duration modulation | electronics | Britannica (original) (raw)

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characteristics of modulation

• 
  In modulation
  …frequency, phase, pulse sequence, and pulse duration.
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transmission of telemetry data

• In telemetry: Transmission.
  …two types are pulse-width (or pulse-duration) modulation and pulse-position modulation. In the first, the information produces variations in the width (or duration) of the pulse; in the second, the variation is in the position of the pulse with respect to time. In the second main class, pulse-code modulation, the information…
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