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Electronic Circuit Design CHO, Yong Heui Introduction to Communication System
1. Communication Transmission  ,[object Object],[object Object],[object Object],[object Object],[object Object],Time domain Frequency domain 출처 : RFDH.com
Why do we need modulation?  ,[object Object],[object Object],[object Object],[object Object],Battery: DC Antenna: AC 1. Communication
Communication transmitter (Tx)  ,[object Object], 출처 : RFDH.com 1. Communication
Communication receiver (Rx)  ,[object Object], 출처 : RFDH.com 1. Communication
Communication transceiver  ,[object Object],[object Object],IF: superheterodyne No IF: direct conversion 출처 : RFDH.com 1. Communication
FDMA (FDM Access)  ,[object Object],[object Object],[object Object],[object Object],1. Communication
TDMA (TDM Access)  ,[object Object],[object Object],[object Object],1. Communication
Synchronization of TDMA  ,[object Object],1. Communication
GSM TDMA  ,[object Object],[object Object],[object Object],1. Communication
FH(Frequency Hopping)-CDMA  ,[object Object],[object Object],[object Object],[object Object],1. Communication
DS(Direct Sequence)-CDMA QPSK: Quadrature Phase Shift Keying 1. Communication
Block diagram of cellular phone ,[object Object],[object Object], 2. System
Digital RF system Transmitter and receiver  2. System
AM receiver  ,[object Object],Antenna + BPF + diode + capacitor + speaker 2. System
AM receiver with amplifier  2. System

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Introduction to Communication System