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How can you code analog signals to digital signals in telecom?

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Question ajoutée par SACHIN REHAN , Trainer , KALGIDHAR SOCIETY/TRUST
Date de publication: 2014/09/17
Inayaturrahaman Syed
par Inayaturrahaman Syed , Inventory Controller , Saleh & Abdul Aziz Abahsain Co. Ltd.

we can code analog signals to digital signals through Binary Digits i.e... 0 and 1

zubair khan
par zubair khan , Trainee Engineer , ZONG CM PAK

Through Pulse code modulation .. that consist od sampling , quantization  translation 

Ayman El Shaer
par Ayman El Shaer , Business Advisor , Freelance

Using A/D which is consisting of three stages

First : Sampling which is must be comply with the Nyquest rate (Higher sampling rate >> Easier & Accurate reconstruction)

Second : Quantization to put each sample at a certain level (More levels >> Higher accuracy)  

Encoding : To translate each quantizied sample into bits (No. of bits = 2 to power of quantization levels)

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