The average textbook definition of modulation reads: modulation is a process in which the frequency, phase or amplitude of a carrier wave varies in step with the instantaneous value of the modulating ...
Designed to complement conventional 4- to 20-mA analog signaling, the Highway Addressable Remote Transducer (HART) protocol supports two-way digital communications for process measurement and control ...
Pulse Width Modulation (PWM) or Pulse Duration Modulation (PDM) is a technique of converting analog signals into rectangular waveforms. The width of the waveform varies in proportion with the ...
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