Chapter 1 Introduction -by Prof.XIAOFENG LI SICE,UESTC UESTC-Introduction Prof李晓峰 1
Examples of communication Sys Diagram and elements of Comm.Sys Digital Comm.Sys. Channels and their characteristics UESTC-Introduction Prof李晓峰 2
Examples of communication Examples of communications: 1.Mobile phones 2.Telephone 3.Computer network Related words: 1.Radio sets,TV sets,Satellite 2.Post office,letters 3.Speech Transmission of information in ELECTRONIC/ELECTRICAL ways UESTC-Introduction Prof李晓峰 3
Examples of communication Mobile phone=Telephone+SMS+ Radio+TV+Internet+... 圈 UESTC-Introduction Prof李晓峰 4
Examples of communication Mobile phone=Telephone+SMS+ 圈 Radio+TV+Internet+... SMS(QQ,WeChat)=Short Message Sys =Telegraphy Telegraphy:oldest communication sys UESTC-Introduction Prof李晓峰 5