Satellite Communications
(Sprache: Englisch)
Extensive revision of the best-selling text on satellite communications -- includes new chapters on cubesats, NGSO satellite systems, and Internet access by satellite
There have been many changes in the thirty three years since the first edition of...
There have been many changes in the thirty three years since the first edition of...
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Klappentext zu „Satellite Communications “
Extensive revision of the best-selling text on satellite communications -- includes new chapters on cubesats, NGSO satellite systems, and Internet access by satelliteThere have been many changes in the thirty three years since the first edition of Satellite Communications was published. There has been a complete transition from analog to digital communication systems, withanalog techniques replaced by digital modulation and digital signal processing. While distribution of television programming remains the largest sector of commercial satellite communications, low earth orbit constellations of satellites for Internet access are set to challenge that dominance.
In the third edition, chapters one through three cover topics that are specific to satellites, including orbits, launchers, and spacecraft. Chapters four through seven cover the principles of digital communication systems, radio frequency communications, digital modulation and multiple access techniques, and propagation in the earth's atmosphere, topics that are common to all radio communication systems. Chapters eight through twelve cover applications that include non-geostationary satellite systems, low throughput systems, direct broadcast satellite television, Internet access by satellite, and global navigation satellite systems. The chapter on Internet access by satellite is new to the third edition, and each of the chapters has been extensively revised to include the many changes in the field since the publication of the second edition in 2003. Two appendices have been added that cover digital transmission of analog signals, and antennas.
An invaluable resource for students and professionals alike, this book:
* Focuses on the fundamental theory of satellite communications
* Explains the underlying principles and essential mathematics required to understand the physics and engineering of satellite communications
* Discusses the expansion of satellite communication systems in
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areas such as direct-broadcast satellite TV, GPS, and internet access
* Introduces the rapidly advancing field of small satellites, referred to as SmallSats or CubeSats
* Provides relevant practice problems based on real-world satellite systems
Satellite Communications is required reading for undergraduate and postgraduate students in satellite communications courses and an authoritative reference for engineers working in communications, systems and networks, and satellite operations and management.
* Introduces the rapidly advancing field of small satellites, referred to as SmallSats or CubeSats
* Provides relevant practice problems based on real-world satellite systems
Satellite Communications is required reading for undergraduate and postgraduate students in satellite communications courses and an authoritative reference for engineers working in communications, systems and networks, and satellite operations and management.
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Inhaltsverzeichnis zu „Satellite Communications “
Preface xiAbout the Authors xv
1 Introduction 1
1.1 Background 1
1.2 A Brief History of Satellite Communications 5
1.3 Satellite Communications in 2018 9
1.4 Overview of Satellite Communications 11
1.5 Summary 14
1.6 Organization of This Book 15
References 16
2 Orbital Mechanics and Launchers 17
2.1 Introduction 17
2.2 Achieving a Stable Orbit 17
2.3 Kepler's Three Laws of Planetary Motion 23
2.4 Describing the Orbit of a Satellite 25
2.5 Locating the Satellite in the Orbit 27
2.6 Locating the Satellite with Respect to the Earth 29
2.7 Orbital Elements 31
2.8 Look Angle Determination 33
2.9 Orbital Perturbations 42
2.10 Orbit Determination 46
2.11 Space Launch Vehicles and Rockets 47
2.12 Placing Satellites Into Geostationary Orbit 56
2.13 Orbital Effects in Communications Systems Performance 59
2.14 Manned Space Vehicles 62
2.15 Summary 64
Exercises 65
References 68
3 Satellites 71
3.1 Satellite Subsystems 72
3.2 Attitude and Orbit Control System (AOCS) 75
3.3 Telemetry, Tracking, Command, and Monitoring (TTC&M) 84
3.4 Power Systems 88
3.5 Communications Subsystems 90
3.6 Satellite Antennas 100
3.7 Equipment Reliability and Space Qualification 107
3.8 Summary 113
Exercises 114
References 116
4 Satellite Link Design 119
4.1 Introduction 119
4.2 Transmission Theory 125
4.3 System Noise Temperature and G/T Ratio 130
4.4 Design of Downlinks 142
4.5 Ku-Band GEO Satellite Systems 149
4.6 Uplink Design 158
4.7 Design for Specified CNR: Combining CNR and C/I Values in Satellite Links 163
4.8 System Design for Specific Performance 167
4.9
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Summary 188
Exercises 189
References 193
5 Digital Transmission and Error Control 195
5.1 Digital Transmission 197
5.2 Implementing Zero ISI Transmission in the Time Domain 215
5.3 Probability of Error in Digital Transmission 221
5.4 Digital Transmission of Analog Signals 231
5.5 Time Division Multiplexing 241
5.6 Packets, Frames, and Protocols 243
5.7 Error Control 246
5.8 Summary 264
Exercises 266
References 269
6 Modulation and Multiple Access 271
6.1 Introduction 271
6.2 Digital Modulation 273
6.3 Multiple Access 287
6.4 Frequency Division Multiple Access (FDMA) 291
6.5 Time Division Multiple Access (TDMA) 308
6.6 Synchronization in TDMA Networks 317
6.7 Transmitter Power in TDMA Networks 319
6.8 Star and Mesh Networks 323
6.9 Onboard Processing 324
6.10 Demand Assignment Multiple Access (DAMA) 329
6.11 Random Access (RA) 333
6.12 Packet Radio Systems and Protocols 334
6.13 Code Division Multiple Access (CDMA) 337
6.14 Summary 348
Exercises 349
References 352
7 Propagation Effects and Their Impact on Satellite-Earth Links 355
7.1 Introduction 355
7.2 Propagation Phenomena 358
7.3 Quantifying Attenuation and Depolarization 359
7.4 Propagation Effects That are Not Associated with Hydrometeors 367
7.5 Rain and Ice Effects 372
7.6 Prediction of Rain Attenuation 380
7.7 Prediction of XPD 390
Exercises 189
References 193
5 Digital Transmission and Error Control 195
5.1 Digital Transmission 197
5.2 Implementing Zero ISI Transmission in the Time Domain 215
5.3 Probability of Error in Digital Transmission 221
5.4 Digital Transmission of Analog Signals 231
5.5 Time Division Multiplexing 241
5.6 Packets, Frames, and Protocols 243
5.7 Error Control 246
5.8 Summary 264
Exercises 266
References 269
6 Modulation and Multiple Access 271
6.1 Introduction 271
6.2 Digital Modulation 273
6.3 Multiple Access 287
6.4 Frequency Division Multiple Access (FDMA) 291
6.5 Time Division Multiple Access (TDMA) 308
6.6 Synchronization in TDMA Networks 317
6.7 Transmitter Power in TDMA Networks 319
6.8 Star and Mesh Networks 323
6.9 Onboard Processing 324
6.10 Demand Assignment Multiple Access (DAMA) 329
6.11 Random Access (RA) 333
6.12 Packet Radio Systems and Protocols 334
6.13 Code Division Multiple Access (CDMA) 337
6.14 Summary 348
Exercises 349
References 352
7 Propagation Effects and Their Impact on Satellite-Earth Links 355
7.1 Introduction 355
7.2 Propagation Phenomena 358
7.3 Quantifying Attenuation and Depolarization 359
7.4 Propagation Effects That are Not Associated with Hydrometeors 367
7.5 Rain and Ice Effects 372
7.6 Prediction of Rain Attenuation 380
7.7 Prediction of XPD 390
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Autoren-Porträt von Timothy Pratt, Jeremy E. Allnutt
Timothy Pratt is Emeritus Professor of Electrical and Computer Engineering at Virginia Tech, USA. He is a life senior member of the Institute of Electrical and Electronic Engineering. After industrial experience in UK industry, he taught at the University of Birmingham for ten years and at Virginia Tech for thirty years. He retired from Virginia Tech in 2013 and lives on a farm in Blacksburg, Virginia.Jeremy Allnutt is Emeritus Professor of Electrical and Computer Engineering at George Mason University, USA. He was a telecommunications research scientist in England and Canada and then Intelsat in Washington, DC, USA. After Intelsat, he spent four years as a professor in ECE at the Northern Virginia campus of Virginia Tech before joining George Mason University, from which he retired in 2014. He is a fellow of the Institute of Electrical and Electronic Engineering and a fellow of the Institution of Engineering and Technology (UK).
Bibliographische Angaben
- Autoren: Timothy Pratt , Jeremy E. Allnutt
- 2019, 3. Aufl., 768 Seiten, Masse: 17,5 x 25 cm, Gebunden, Englisch
- Verlag: Wiley & Sons
- ISBN-10: 1119482178
- ISBN-13: 9781119482178
- Erscheinungsdatum: 05.12.2019
Sprache:
Englisch
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