McGraw-Hill©The McGraw-Hill Companies, Inc., 2003 Chapter 3 Data Transmission.

McGraw-Hill ©The McGraw-Hill Companies, Inc., 2003

Chapter 3

Data Transmission


Figure 3-1

A Digital Signal


Bit Rate and Bit Interval

Figure 3-2


Figure 3-3

An Analog Signal


Figure 3-4

A Sine Wave


Figure 3-5

Amplitude


Figure 3-6

Period and Frequency


Figure 3-7

Relationship between Different Phases


Figure 3-8

Time and Frequency Domains


Figure 3-9

A Signal with a DC Component


Figure 3-10

Bandwidth


Figure 3-11

Line Coding


Figure 3-12

Signal Levels versus Data Levels


Figure 3-13DC Components


Figure 3-14

Lack of Synchronization


Figure 3-15

Line Coding Schemes


Figure 3-16

Unipolar Encoding


Figure 3-17

Types of Polar Encoding


Figure 3-18

NRZ Coding


Figure3-19

RZ Coding


Figure 3-20Manchester and Diff. Manchester Encoding


Figure 3-21

Block Coding


Figure 3-22

Substitution in Block Coding


Figure 3-23Sampling


Figure 3-24

Quantizing


Figure3.25

Converting to Binary Numbers


Figure 3-26

Nyquist Theorem


Figure 3-27

Categories of Modulation by a Digital Signal


Figure 3-28

ASK


Figure 3-29

FSK


Figure 3-30

PSK


Figure 3-31

Time Domain for 8-QAM Signal


Figure 3-32

Multiplexing versus No Multiplexing


Figure 3-33

Categories of Multiplexing


Figure 3-34

FDM


Figure 3-35

FDM Multiplexing Process, Time Domain


Figure 3-36

TDM


Figure 3-37

Synchronous TDM


Figure 3-38

Framing Bits


Figure 3-39

Asynchronous TDM

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