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No, Pulse Code Modulation is a communication method used to carry digital data but is not part of any analog to digital conversion. PCM is often used to carry audio data as a digital stream and therefore is the encoding used as the signal is first converted to a digital format.
in pcm entie sample is sent.. where as in dpcm the difference between the predicted value and the original sample is sent which will be smaller when compared rto the original sample..
PCM (Pulse Code Modulation)
PCM is preferable because of better SNR characteristics.
Quantization noise is a model of quantization error introduced by quantization in the analog-to-digital conversion(ADC) in telecommunication systems and signal processing.
The PCM on a 2003 Neon is between the radiator and the transmission under the hood.
Analog Pulse modulation is discreet in time but the formation is transmitted in continuous form. In digital pulse modulation, not only the time axis is discreet but the information is also in digital form. Examples of Analog PM are PAM and PTM i.e pulse amplitude and pulse time modulations respectively. Examples of Digital PM are PCM and PDM i.e pulse code and pulse delta modulations respectively.
nothing
comparing between pcm system and analog system : power , B.W , SNR , transmission length ?
In telecommunications it means Pulse Code Modulation, which is a digital means of sending a signal from point A to point B.
The following recording mediums became available :1877 Thomas Edison invents the wax cylinder recorder.1890 wire recorderBakolite records 1897 -1950sReel to Reel magnetic tape 1930 (invented 1928)Mono vynal records 1948Stereo vynal records 1958Phillips compact cassette 1963Denon PCM tape 1974Prodigi open reel digital audio tape 1980CD 1982DASH (Digital Audio Stationary Head) 1982DAT 1985ADAT 1991
You want to use a digital. Faster reacting to fluctuations as with O2S and HO2s that constantly switch between hi and low readings ,and other millivolt circuits, and even the need to check resistance up to 40,000 ohms in some cases just to ensure components in a circuit are operating correctly to achieve the desired operation in the pcm, ecm, ecu or whatever terminology is applied.