E-Book, Englisch, 132 Seiten, eBook
Reihe: SpringerBriefs in Electrical and Computer Engineering
Matin Communication Systems for Electrical Engineers
1. Auflage 2018
ISBN: 978-3-319-70129-5
Verlag: Springer International Publishing
Format: PDF
Kopierschutz: 1 - PDF Watermark
E-Book, Englisch, 132 Seiten, eBook
Reihe: SpringerBriefs in Electrical and Computer Engineering
ISBN: 978-3-319-70129-5
Verlag: Springer International Publishing
Format: PDF
Kopierschutz: 1 - PDF Watermark
This book is written as a very concise introduction for students taking a first course in communication systems. It provides the reader with fundamentals of digital communication systems and disseminates the essentials needed for the understanding of wire and wireless communication systems for Electrical Engineers. It covers important topics right from the beginning of the subject which communication engineers must understand. Example problems in each chapter will help them in understanding the materials well. The study of data networking will include multiple access, reliable packet transmission, routing and protocols of the internet. The concepts taught in class will be discussed in the context of aerospace communication systems: aircraft communications, satellite communications.
The book includes example problems in each chapter to help the reader in understanding the materials well.
Zielgruppe
Lower undergraduate
Autoren/Hrsg.
Weitere Infos & Material
1;Contents;6
2;1 Introduction to Signals, Systems and Communication;10
2.1;1.1 Introduction;10
2.2;1.2 Signals;10
2.2.1;1.2.1 Representation of Signals;12
2.2.2;1.2.2 Bandwidth of Signals;12
2.2.3;1.2.3 Evaluation of Signal Power;13
2.2.4;1.2.4 Transform of Periodic Signals;14
2.2.5;1.2.5 Fourier Transform and Spectra;15
2.2.6;1.2.6 Signal Shapes in Communication;16
2.2.7;1.2.7 Some Useful Signal Operations;16
2.3;1.3 System;18
2.3.1;1.3.1 Baseband Systems;19
2.3.2;1.3.2 Passband Systems;20
2.4;1.4 Communication System;20
2.4.1;1.4.1 Analog Versus Digital Communication System;21
2.4.2;1.4.2 Modulation and Demodulation in Communication System;22
2.4.3;1.4.3 Performance of Communication Systems;22
2.5;1.5 Sample Questions;23
3;2 Transmission Media and Propagation Mechanisms;24
3.1;2.1 Introduction;24
3.2;2.2 Wired Media: Twisted Pair;24
3.3;2.3 Wired Media: Optical Fiber;25
3.3.1;2.3.1 Structure of an Fiber Optic Cable;25
3.3.2;2.3.2 Propagation Modes of Fiber Optic Cable;26
3.3.3;2.3.3 Calculation of Number of Modes in a Fiber;27
3.3.4;2.3.4 Optical Fiber Index Profile;28
3.3.5;2.3.5 Optical Fiber’s Numerical Aperture (NA);29
3.4;2.4 Wireless Media;30
3.5;2.5 Transmission Impairments;30
3.6;2.6 Data Transmission;32
3.6.1;2.6.1 Nyquist Information Capacity;32
3.6.2;2.6.2 Shannon Capacity;33
3.7;2.7 Wireless Propagation;34
3.7.1;2.7.1 Ground Wave Propagation;34
3.7.2;2.7.2 Sky Wave Propagation;34
3.8;2.8 Propagation Mechanism;36
3.9;2.9 Sample Questions;37
3.10;Reference;37
4;3 Speech Digitization and Service Integration;38
4.1;3.1 Introduction;38
4.2;3.2 Speech Digitization;38
4.3;3.3 Pulse Code Modulation (PCM);39
4.3.1;3.3.1 Sampling;39
4.3.2;3.3.2 Quantizing;40
4.3.2.1;3.3.2.1 Signal to Quantization Noise Ratio, (SNR)Q;41
4.3.3;3.3.3 Nonuniform Quantizing: Companding;44
4.3.4;3.3.4 Encoding;44
4.4;3.4 PCM Transmission Bandwidth and the Output SNR;45
4.5;3.5 Time Division Multiplexing of Digitized Speech Channels in PSTN;46
4.5.1;3.5.1 Higher Order Multiplexing;47
4.6;3.6 Differential Pulse Code Modulation (DPCM);48
4.7;3.7 Delta Modulation;49
4.8;3.8 Integrated Services Digital Network (ISDN);50
4.9;3.9 Sample Questions;51
4.10;References;51
5;4 AM, Angle Modulation and Digital Modulation Systems;52
5.1;4.1 Introduction;52
5.2;4.2 Amplitude Modulation (AM);52
5.2.1;4.2.1 AM Spectrum;52
5.2.2;4.2.2 Double Sideband Suppressed Carrier (DSB-SC);54
5.2.3;4.2.3 AM Modulation Index;57
5.2.4;4.2.4 Power of an AM Signal;58
5.2.5;4.2.5 AM Signals Generation;60
5.2.6;4.2.6 Demodulation Methods of AM;61
5.2.6.1;4.2.6.1 Rectifier Detector;61
5.2.6.2;4.2.6.2 Envelope Detector;61
5.3;4.3 Angle Modulation (FM and PM);63
5.3.1;4.3.1 Frequency Modulation (FM);63
5.3.2;4.3.2 FM Signal Spectrum and Bandwidth;64
5.3.3;4.3.3 Power in FM Signal;66
5.3.4;4.3.4 FM Signal Generation;67
5.3.5;4.3.5 FM Demodulation-General Principles;68
5.3.5.1;4.3.5.1 Tuned Circuit;69
5.3.5.2;4.3.5.2 Phase-Locked Loop (PLL);69
5.3.6;4.3.6 Frequency Modulation Versus Amplitude Modulation;70
5.3.7;4.3.7 Phase Modulation (PM);70
5.3.8;4.3.8 Relation Between PM and FM;71
5.4;4.4 Generalized Receiver: Superheterodyne Receiver;71
5.5;4.5 Digital Modulation Techniques;72
5.5.1;4.5.1 Binary Modulated Bandpass Signaling;72
5.5.2;4.5.2 Multilevel Modulated Bandpass Signaling;75
5.6;4.6 Sample Questions;77
6;5 Telecommunication Systems;79
6.1;5.1 Introduction;79
6.2;5.2 Evolution of Modern Telecommunications;79
6.3;5.3 Simple Telephone Communication;80
6.3.1;5.3.1 Subscriber Loop Signaling;81
6.3.2;5.3.2 Signaling Tones to the Exchange from the Telephone;82
6.3.3;5.3.3 Telephone Numbering Plan;83
6.4;5.4 Telephone Call and Charging Plan;84
6.4.1;5.4.1 Telephone Call Set-up;84
6.4.2;5.4.2 Charging Plan;85
6.5;5.5 Telecommunication Network;85
6.5.1;5.5.1 Elements of Telecommunication Network;85
6.5.2;5.5.2 Technologies in Telecommunication Network;87
6.5.2.1;5.5.2.1 Transmission Systems;87
6.5.2.2;5.5.2.2 Switching Systems;88
6.5.2.3;5.5.2.3 Signalling System;89
6.6;5.6 Telecommunication Design and Implementation;90
6.6.1;5.6.1 Telecommunication Access Network Architecture: Fiber to the x;90
6.6.2;5.6.2 Metro (SONET/SDH, Metro Ethernet) and Core Network Architecture;90
6.7;5.7 Telecommunication Traffic Engineering;91
6.7.1;5.7.1 Trunking and Grade of Service;92
6.7.1.1;5.7.1.1 Traffic Model;93
6.7.1.2;5.7.1.2 Congestion;93
6.7.1.3;5.7.1.3 Erlang B formula;93
6.8;5.8 Sample Questions;95
6.9;References;95
7;6 Cellular Telephony System;96
7.1;6.1 Introduction;96
7.2;6.2 Basic Cellular Telephony;96
7.3;6.3 Cellular Telephony Evolution;97
7.4;6.4 Cellular Concept;98
7.4.1;6.4.1 Frequency Reuse;99
7.5;6.5 Hierarchical Cell Structure;101
7.6;6.6 Handoff in Cellular System;101
7.6.1;6.6.1 Types of Handoffs;103
7.6.2;6.6.2 Practical Handoff Scenarios;104
7.6.2.1;6.6.2.1 Umbrella Cell Approach;104
7.6.2.2;6.6.2.2 Cell Dragging;104
7.7;6.7 Interference and System Capacity;105
7.8;6.8 Techniques for Improving Coverage and Capacity;109
7.8.1;6.8.1 Cell Splitting;109
7.8.2;6.8.2 Sectoring;110
7.8.3;6.8.3 Microcell Zone Concept;111
7.9;6.9 Sample Questions;112
7.10;References;113
8;7 Satellite Communication Systems;114
8.1;7.1 Introduction;114
8.2;7.2 Active and Passive Satellites;115
8.3;7.3 Satellite Communications Spectrum;116
8.4;7.4 Orbits for Communication Satellites;116
8.5;7.5 Elements of Satellite Communications System;119
8.5.1;7.5.1 Space Segment;119
8.5.1.1;7.5.1.1 Satellite Payload;121
8.5.1.2;7.5.1.2 Satellite Subsystems;122
8.5.2;7.5.2 Ground Segment;123
8.6;7.6 “Link Budget” for Satellite Communication;125
8.6.1;7.6.1 Carrier-to-Noise Ratio;128
8.7;7.7 Launch Vehicles and Satellite Installation;128
8.7.1;7.7.1 Launch Vehicle;129
8.7.2;7.7.2 Satellite Installation;129
8.7.3;7.7.3 Launch of Communication Satellites;130
8.7.4;7.7.4 Launch Failure;130
8.8;7.8 Sample Questions;131
8.9;References;131
9;Index;132