Analog transmission is not particularly efficient. When the signal-to-noise ratio of an analog signal deteriorates due to attenuation, amplifying the signal also amplifies noise. Digital signals are ...
For technical and economic reasons, the present network of lines used for distributing sound signals to transmitters at audio frequencies will eventually have to be replaced by some telecommunication ...
His book Principles Of Pulse Code Modulation, published in 1969, became a standard reference on the subject, the university said. Pulse code modulation is a method of turning analogue signals, such as ...
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