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Bottom up - physical layer

2022-07-06 08:27:00 tigerdanceonbyte

Basic knowledge of data communication

Terms related to data communication

  Three communication modes

  Two data transmission modes   Code element

rate 、 potter 、 bandwidth

  The distortion

  Intersymbol crosstalk

  Nyquist criterion

  Shannon's theorem

  Coding and modulation

Transmission medium

Physical devices

 

 

 

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