Page 43 - eBOOK FUNDAMENTAL OF TELECOMMUNICATION NETWORK
P. 43

Answer












                   Question 2





                   List and describe three steps/processes in PCM.






                  Three steps in Pulse Code Modulation process:


                     1. Sampling


                     2. Quantizing


                     3. Encoding






                        Sampling  is  a  process  of  taking  the  analog  voice


                        signal sampler at regular time intervals, Ts.






                        Quantization  is  the  next  process  by  identify  the

                        binary code to represent the amplitude (voltage) of


                        the original analog (PAM) signal as per Ts.






                        Encoding  is  the  process  to  code  the  quantized


                        sampler into 8 bits (for voice) binary code per Ts.


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