Line coding

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The binary deta such as 1’s and 0’s produced by a PCM encoder may be represented in various signalling formats for the transmission over a channel.These signalling formats are known as line codes.

This video will help you to understand the concept of Unipolar, polar, bipolar.

Modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a modulating signal that typically contains information to be transmitted.


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