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The naive digital communications layer

作者:互联网

原文链接:http://www.cnblogs.com/nickchan/archive/2011/10/08/3104474.html

The naive digital communications layer: The first layer of the onion introduces the digital transmission of data, and discusses how bits of information may be coded into waveforms, sent across space to the receiver, and then decoded back into bits. Since there is no universal clock, issues of timing become important, and some of the most complex issues in digital receiver design involve the synchronization of the received signal. The system can be viewed as consisting of three parts: the transmitter,

 
digital
message
->     coding ->   
pulse
shaping
->    
frequency
translation
 

the transmission channel, and the receiver

 
frequency
translation
-> sampling ->
decision
device
-> decoding ->
reconstructed
message
 

转载于:https://www.cnblogs.com/nickchan/archive/2011/10/08/3104474.html

标签:layer,3104474,naive,digital,www,communications,receiver,into
来源: https://blog.csdn.net/weixin_30271335/article/details/99574859