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Is PCM a preferred modulation for analog data transmission
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If you don't want to digitize - i.e. you must/want to transmit in analog form -- your only choices are DC
or AC -- with amplitude, phase, frequency modulation. --
The Pulse modulation is a variety of AC . You can use pulse
width, frequency or phase modulation.
The choice is not simple - you have to know the noise, its
properties, required accuracy etc.
Do you want to transmit by wire,IR by air or fiber or RF ? what is the distance? What king of accuracy ? cost consideration ? Circuit size limits?
<nbucska@pcperipherals.com>
or AC -- with amplitude, phase, frequency modulation. --
The Pulse modulation is a variety of AC . You can use pulse
width, frequency or phase modulation.
The choice is not simple - you have to know the noise, its
properties, required accuracy etc.
Do you want to transmit by wire,IR by air or fiber or RF ? what is the distance? What king of accuracy ? cost consideration ? Circuit size limits?
<nbucska@pcperipherals.com>
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