pcm is used in mobile...
The difference between pulse code modulation and delta modulation is that pulse code modulation is a method of encoding audio information digitally while delta modulation is a method that converts analog to digital signal.
pulse code modulation method used a telephony.
Actually there are four:widthamplitudepositioncodeOf these four pulse code modulation is digital while the other three are analog.
Regenerative Repeater is used for the PCM (Pulse code modulation ) it amplifies the signal because the effect of the channel over the signal .
Pulse width mod, pulse amplitude mod, pulse position mod, pulse code mod.
pulse code modulation
Pulse position modulation offers high noise immunity, efficient use of bandwidth, and easy implementation with digital circuits. This modulation technique is particularly useful in applications requiring high data transmission rates and reliable communication in noisy environments.
PCM (Pulse Code Modulation)
It is a type of Pulse modulation as in PPM the position of pulse of carrier pulse train is varied in accordance with the modulating signal.
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Delta modulation is not a type of quality conversion and runs on digital-to-analog, analog-to-digital. Differential pulse code modulation has a higher quality of conversion and runs on a 1-bit data stream.
PCM is Pulse Code Modulation, a modulation format used for recording audio in video recorders, computers, etc.