Satellite technology principles and applications
Fully updated edition of the comprehensive, single-source reference on satellite technology and its applications Covering both the technology and its applications, Satellite Technology is a comprehensive reference on satellites and their commercial, scientific and military applications. The book exp...
Otros Autores: | , |
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Formato: | Libro electrónico |
Idioma: | Inglés |
Publicado: |
Chichester, West Sussex :
Wiley
[2014]
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Edición: | Third edition |
Materias: | |
Ver en Biblioteca Universitat Ramon Llull: | https://discovery.url.edu/permalink/34CSUC_URL/1im36ta/alma991009628004706719 |
Tabla de Contenidos:
- Preface xxi
- PART I SATELLITE TECHNOLOGY
- 1 Introduction to Satellites and their Applications 3
- 1.1 Ever-expanding Application Spectrum 3
- 1.2 What is a Satellite? 4
- 1.3 History of the Evolution of Satellites 7
- 1.3.1 Era of Hot Air Balloons and Sounding Rockets 7
- 1.3.2 Launch of Early Artificial Satellites 8
- 1.3.3 Satellites for Communications, Meteorology and Scientific Exploration
- Early Developments 10
- 1.3.4 Non-geosynchronous Communication Satellites: Telstar and Relay Programmes 11
- 1.3.5 Emergence of Geosynchronous Communication Satellites 12
- 1.3.6 International Communication Satellite Systems 15
- 1.3.7 Domestic Communication Satellite Systems 16
- 1.3.8 Satellites for other Applications also made Rapid Progress 19
- 1.3.9 Small or Miniature Satellites 22
- 1.4 Evolution of Launch Vehicles 27
- 1.5 Future Trends 33
- 1.5.1 Communication Satellites 33
- 1.5.2 Weather Forecasting Satellites 33
- 1.5.3 Earth Observation Satellites 33
- 1.5.4 Navigational Satellites 34
- 1.5.5 Military Satellites 35
- Further Reading 35
- Glossary 35
- 2 Satellite Orbits and Trajectories 37
- 2.1 Definition of an Orbit and a Trajectory 37
- 2.2 Orbiting Satellites
- Basic Principles 37
- 2.2.1 Newton's Law of Gravitation 39
- 2.2.2 Newton's Second Law of Motion 40
- 2.2.3 Kepler's Laws 41
- 2.3 Orbital Parameters 44
- 2.4 Injection Velocity and Resulting Satellite Trajectories 61
- 2.5 Types of Satellite Orbits 67
- 2.5.1 Orientation of the Orbital Plane 67
- 2.5.2 Eccentricity of the Orbit 68
- 2.5.3 Distance from Earth 70
- 2.5.4 Sun-synchronous Orbit 73
- Further Readings 76
- Glossary 76
- 3 Satellite Launch and In-orbit Operations 79
- 3.1 Acquiring the Desired Orbit 79
- 3.1.1 Parameters Defining the Satellite Orbit 80
- 3.1.2 Modifying the Orbital Parameters 83
- 3.2 Launch Sequence 95
- 3.2.1 Types of Launch Sequence 95
- 3.3 Launch Vehicles 100
- 3.3.1 Introduction 100
- 3.3.2 Classification 100
- 3.3.3 Anatomy of a Launch Vehicle 104.
- 3.3.4 Principal Parameters 106
- 3.3.5 Major Launch Vehicles 108
- 3.4 Space Centres 127
- 3.4.1 Location Considerations 127
- 3.4.2 Constituent Parts of a Space Centre 128
- 3.4.3 Major Space Centres 129
- 3.5 Orbital Perturbations 144
- 3.6 Satellite Stabilization 146
- 3.6.1 Spin Stabilization 146
- 3.6.2 Three-axis or Body Stabilization 147
- 3.6.3 Comparison between Spin-stabilized and Three-axis Stabilized Satellites 149
- 3.6.4 Station Keeping 149
- 3.7 Orbital Effects on Satellite's Performance 149
- 3.7.1 Doppler Shift 149
- 3.7.2 Variation in the Orbital Distance 150
- 3.7.3 Solar Eclipse 150
- 3.7.4 Sun Transit Outrage 150
- 3.8 Eclipses 150
- 3.9 Look Angles of a Satellite 154
- 3.9.1 Azimuth Angle 154
- 3.9.2 Elevation Angle 155
- 3.9.3 Computing the Slant Range 156
- 3.9.4 Computing the Line-of-Sight Distance between Two Satellites 158
- 3.10 Earth Coverage and Ground Tracks 166
- 3.10.1 Satellite Altitude and the Earth Coverage Area 166
- 3.10.2 Satellite Ground Tracks 167
- 3.10.3 Orbit Inclination and Latitude Coverage 170
- Further Readings 172
- Glossary 172
- 4 Satellite Hardware 174
- 4.1 Satellite Subsystems 174
- 4.2 Mechanical Structure 175
- 4.2.1 Design Considerations 176
- 4.2.2 Typical Structure 176
- 4.3 Propulsion Subsystem 177
- 4.3.1 Basic Principle 178
- 4.3.2 Types of Propulsion System 178
- 4.4 Thermal Control Subsystem 185
- 4.4.1 Sources of Thermal Inequilibrium 186
- 4.4.2 Mechanism of Heat Transfer 186
- 4.4.3 Types of Thermal Control 187
- 4.5 Power Supply Subsystem 189
- 4.5.1 Types of Power System 189
- 4.5.2 Solar Energy Driven Power Systems 190
- 4.5.3 Batteries 195
- 4.6 Attitude and Orbit Control 199
- 4.6.1 Attitude Control 200
- 4.6.2 Orbit Control 200
- 4.7 Tracking, Telemetry and Command Subsystem 201
- 4.8 Payload 203
- 4.9 Antenna Subsystem 205
- 4.9.1 Antenna Parameters 207
- 4.9.2 Types of Antennas 210
- 4.10 Space Qualification and Equipment Reliability 224.
- 4.10.1 Space Qualification 224
- 4.10.2 Reliability 225
- Further Readings 226
- Glossary 227
- 5 Communication Techniques 229
- 5.1 Types of Information Signals 229
- 5.1.1 Voice Signals 230
- 5.1.2 Data Signals 230
- 5.1.3 Video Signals 230
- 5.2 Amplitude Modulation 231
- 5.2.1 Frequency Spectrum of the AM Signal 232
- 5.2.2 Power in the AM Signal 233
- 5.2.3 Noise in the AM Signal 233
- 5.2.4 Different Forms of Amplitude Modulation 235
- 5.3 Frequency Modulation 241
- 5.3.1 Frequency Spectrum of the FM Signal 243
- 5.3.2 Narrow Band and Wide Band FM 245
- 5.3.3 Noise in the FM Signal 246
- 5.3.4 Generation of FM Signals 250
- 5.3.5 Detection of FM Signals 252
- 5.4 Pulse Communication Systems 259
- 5.4.1 Analogue Pulse Communication Systems 259
- 5.4.2 Digital Pulse Communication Systems 261
- 5.5 Sampling Theorem 265
- 5.6 Shannon
- Hartley Theorem 266
- 5.7 Digital Modulation Techniques 267
- 5.7.1 Amplitude Shift Keying (ASK) 268
- 5.7.2 Frequency Shift Keying (FSK) 268
- 5.7.3 Phase Shift Keying (PSK) 269
- 5.7.4 Differential Phase Shift Keying (DPSK) 270
- 5.7.5 Quadrature Phase Shift Keying (QPSK) 271
- 5.7.6 Offset QPSK 273
- 5.7.7 8PSK and 16PSK 274
- 5.7.8 Quadrature Amplitude Modulation (QAM) 274
- 5.7.9 Amplitude Phase Shift Keying (APSK) 276
- 5.8 Multiplexing Techniques 277
- 5.8.1 Frequency Division Multiplexing 277
- 5.8.2 Time Division Multiplexing 279
- 5.8.3 Code Division Multiplexing 281
- Further Readings 282
- Glossary 283
- 6 Multiple Access Techniques 286
- 6.1 Introduction to Multiple Access Techniques 286
- 6.1.1 Transponder Assignment Modes 287
- 6.2 Frequency Division Multiple Access (FDMA) 288
- 6.2.1 Demand Assigned FDMA 290
- 6.2.2 Pre-assigned FDMA 290
- 6.2.3 Calculation of C/N Ratio 290
- 6.3 Single Channel Per Carrier (SCPC) Systems 293
- 6.3.1 SCPC/FM/FDMA System 293
- 6.3.2 SCPC/PSK/FDMA System 294
- 6.4 Multiple Channels Per Carrier (MCPC) Systems 295
- 6.4.1 MCPC/FDM/FM/FDMA System 295.
- 6.4.2 MCPC/PCM-TDM/PSK/FDMA System 296
- 6.5 Time Division Multiple Access (TDMA) 297
- 6.6 TDMA Frame Structure 297
- 6.6.1 Reference Burst 298
- 6.6.2 Traffic Burst 298
- 6.6.3 Guard Time 299
- 6.7 TDMA Burst Structure 299
- 6.7.1 Carrier and Clock Recovery Sequence 299
- 6.7.2 Unique Word 299
- 6.7.3 Signalling Channel 300
- 6.7.4 Traffic Information 301
- 6.8 Computing Unique Word Detection Probability 301
- 6.9 TDMA Frame Efficiency 302
- 6.10 Control and Coordination of Traffic 303
- 6.11 Frame Acquisition and Synchronization 305
- 6.11.1 Extraction of Traffic Bursts from Receive Frames 305
- 6.11.2 Transmission of Traffic Bursts 305
- 6.11.3 Frame Synchronization 305
- 6.12 FDMA vs. TDMA 307
- 6.12.1 Advantages of TDMA over FDMA 308
- 6.12.2 Disadvantages of TDMA over FDMA 308
- 6.13 Code Division Multiple Access (CDMA) 308
- 6.13.1 DS-CDMA Transmission and Reception 309
- 6.13.2 Frequency Hopping CDMA (FH-CDMA) System 311
- 6.13.3 Time Hopping CDMA (TH-CDMA) System 313
- 6.13.4 Comparison of DS-CDMA, FH-CDMA and TH-CDMA Systems 314
- 6.14 Space Domain Multiple Access (SDMA) 316
- 6.14.1 Frequency Re-use in SDMA 316
- 6.14.2 SDMA/FDMA System 317
- 6.14.3 SDMA/TDMA System 318
- 6.14.4 SDMA/CDMA System 319
- Further Readings 319
- Glossary 320
- 7 Satellite Link Design Fundamentals 322
- 7.1 Transmission Equation 322
- 7.2 Satellite Link Parameters 324
- 7.2.1 Choice of Operating Frequency 324
- 7.2.2 Propagation Considerations 324
- 7.2.3 Noise Considerations 325
- 7.2.4 Interference-related Problems 325
- 7.3 Frequency Considerations 326
- 7.3.1 Frequency Allocation and Coordination 326
- 7.4 Propagation Considerations 330
- 7.4.1 Free-space Loss 330
- 7.4.2 Gaseous Absorption 331
- 7.4.3 Attenuation due to Rain 333
- 7.4.4 Cloud Attenuation 334
- 7.4.5 Signal Fading due to Refraction 334
- 7.4.6 Ionosphere-related Effects 335
- 7.4.7 Fading due to Multipath Signals 338
- 7.5 Techniques to Counter Propagation Effects 341.
- 7.5.1 Attenuation Compensation Techniques 341
- 7.5.2 Depolarization Compensation Techniques 342
- 7.6 Noise Considerations 342
- 7.6.1 Thermal Noise 342
- 7.6.2 Noise Figure 343
- 7.6.3 Noise Temperature 344
- 7.6.4 Noise Figure and Noise Temperature of Cascaded Stages 345
- 7.6.5 Antenna Noise Temperature 346
- 7.6.6 Overall System Noise Temperature 350
- 7.7 Interference-related Problems 353
- 7.7.1 Intermodulation Distortion 354
- 7.7.2 Interference between the Satellite and Terrestrial Links 357
- 7.7.3 Interference due to Adjacent Satellites 357
- 7.7.4 Cross-polarization Interference 361
- 7.7.5 Adjacent Channel Interference 361
- 7.8 Antenna Gain-to-Noise Temperature (G/T) Ratio 365
- 7.9 Link Design 367
- 7.9.1 Link Design Procedure 368
- 7.9.2 Link Budget 368
- 7.10 Multiple Spot Beam Technology 371
- Further Readings 374
- Glossary 375
- 8 Earth Station 378
- 8.1 Earth Station 378
- 8.2 Types of Earth Station 380
- 8.2.1 Fixed Satellite Service (FSS) Earth Station 381
- 8.2.2 Broadcast Satellite Service (BSS) Earth Stations 382
- 8.2.3 Mobile Satellite Service (MSS) Earth Stations 383
- 8.2.4 Single Function Stations 384
- 8.2.5 Gateway Stations 385
- 8.2.6 Teleports 386
- 8.3 Earth Station Architecture 386
- 8.4 Earth Station Design Considerations 387
- 8.4.1 Key Performance Parameters 388
- 8.4.2 Earth Station Design Optimization 390
- 8.4.3 Environmental and Site Considerations 391
- 8.5 Earth Station Testing 392
- 8.5.1 Unit and Subsystem Level Testing 392
- 8.5.2 System Level Testing 392
- 8.6 Earth Station Hardware 398
- 8.6.1 RF Equipment 398
- 8.6.2 IF and Baseband Equipment 408
- 8.6.3 Terrestrial Interface 409
- 8.7 Satellite Tracking 412
- 8.7.1 Satellite Tracking System
- Block Diagram 412
- 8.7.2 Tracking Techniques 412
- 8.8 Some Representative Earth Stations 419
- 8.8.1 Goonhilly Satellite Earth Station 419
- 8.8.2 Madley Communications Centre 421
- 8.8.3 Madrid Deep Space Communications Complex 421.
- 8.8.4 Canberra Deep Space Communications Complex 422
- 8.8.5 Goldstone Deep Space Communications Complex 423
- 8.8.6 Honeysuckle Creek Tracking Station 424
- 8.8.7 Kaena Point Satellite Tracking Station 426
- 8.8.8 Bukit Timah Satellite Earth Station 426
- 8.8.9 INTELSAT Teleport Earth Stations 426
- 8.8.10 SUPARCO Satellite Ground Station 428
- 8.8.11 Makarios Satellite Earth Station 428
- 8.8.12 Raisting Earth Station 428
- 8.8.13 Indian Deep Space Network 429
- Glossary 430
- 9 Networking Concepts 433
- 9.1 Introduction 433
- 9.2 Network Characteristics 433
- 9.2.1 Availability 434
- 9.2.2 Reliability 434
- 9.2.3 Security 435
- 9.2.4 Throughput 436
- 9.2.5 Scalability 437
- 9.2.6 Topology 437
- 9.2.7 Cost 437
- 9.3 Applications and Services 437
- 9.3.1 Satellite and Network Services 438
- 9.3.2 Satellite Services 438
- 9.3.3 Network Services 438
- 9.3.4 Internet Services 439
- 9.4 Network Topologies 442
- 9.4.1 Bus Topology 442
- 9.4.2 Star Topology 443
- 9.4.3 Ring Topology 444
- 9.4.4 Mesh Topology 444
- 9.4.5 Tree Topology 445
- 9.4.6 Hybrid Topology 446
- 9.5 Network Technologies 447
- 9.5.1 Circuit Switched Networks 447
- 9.5.2 Packet Switched Networks 448
- 9.5.3 Circuit Switched versus Packet Switched Networks 449
- 9.6 Networking Protocols 450
- 9.6.1 Common Networking Protocols 450
- 9.6.2 The Open Systems Interconnect (OSI) Reference Model 453
- 9.6.3 Internet Protocol (IP) 456
- 9.6.4 Transmission Control Protocol (TCP) 457
- 9.6.5 Hyper Text Transfer Protocol (HTTP) 457
- 9.6.6 File Transfer Protocol (FTP) 457
- 9.6.7 Simple Mail Transfer Protocol (SMTP) 458
- 9.6.8 User Datagram Protocol (UDP) 458
- 9.6.9 Asynchronous Transfer Mode (ATM) 459
- 9.7 Satellite Constellations 459
- 9.7.1 Constellation Geometry 459
- 9.7.2 Major Satellite Constellations 460
- 9.8 Internetworking with Terrestrial Networks 465
- 9.8.1 Repeaters, Bridges, Switches and Routers 465
- 9.8.2 Protocol Translation, Stacking and Tunnelling 466.
- 9.8.3 Quality of Service 466
- Further Readings 467
- Glossary 467
- PART II SATELLITE APPLICATIONS
- 10 Communication Satellites 473
- 10.1 Introduction to Communication Satellites 473
- 10.2 Communication-related Applications of Satellites 474
- 10.2.1 Geostationary Satellite Communication Systems 475
- 10.2.2 Non-geostationary Satellite Communication Systems 475
- 10.3 Frequency Bands 475
- 10.4 Payloads 475
- 10.4.1 Types of Transponders 477
- 10.4.2 Transponder Performance Parameters 478
- 10.5 Satellite versus Terrestrial Networks 479
- 10.5.1 Advantages of Satellites Over Terrestrial Networks 479
- 10.5.2 Disadvantages of Satellites with Respect to Terrestrial Networks 480
- 10.6 Satellite Telephony 481
- 10.6.1 Point-to-Point Trunk Telephone Networks 482
- 10.6.2 Mobile Satellite Telephony 482
- 10.7 Satellite Television 484
- 10.7.1 A Typical Satellite TV Network 484
- 10.7.2 Satellite
- Cable Television 485
- 10.7.3 Satellite
- Local Broadcast TV Network 486
- 10.7.4 Direct-to-Home Satellite Television 487
- 10.7.5 Digital Video Broadcasting (DVB) 490
- 10.7.6 DVB-S and DVB-S2 Standards 491
- 10.7.7 DVB-RCS and DVB-RCS2 Standards 493
- 10.7.8 DVB-T and DVB-T2 Standards 493
- 10.7.9 DVB-H and DVB-SH Standards 494
- 10.8 Satellite Radio 496
- 10.9 Satellite Data Communication Services 496
- 10.9.1 Satellite Data Broadcasting 496
- 10.9.2 VSATs (Very Small Aperture Terminals) 497
- 10.10 Important Missions 502
- 10.10.1 International Satellite Systems 502
- 10.10.2 Regional Satellite Systems 512
- 10.10.3 National Satellite Systems 513
- 10.11 Future Trends 514
- 10.11.1 Development of Satellite Constellations in LEO Orbits 516
- 10.11.2 Development of Personal Communication Services (PCS) 516
- 10.11.3 Use of Higher Frequency Bands 517
- 10.11.4 Development of Light Quantum Communication Techniques 517
- 10.11.5 Development of Broadband Services to Mobile Users 517
- 10.11.6 Development of Hybrid Satellite/Terrestrial Networks 517.
- 10.11.7 Advanced Concepts 518
- Further Readings 519
- Glossary 521
- 11 Remote Sensing Satellites 524
- 11.1 Remote Sensing
- An Overview 524
- 11.1.1 Aerial Remote Sensing 525
- 11.1.2 Satellite Remote Sensing 525
- 11.2 Classification of Satellite Remote Sensing Systems 526
- 11.2.1 Optical Remote Sensing Systems 526
- 11.2.2 Thermal Infrared Remote Sensing Systems 528
- 11.2.3 Microwave Remote Sensing Systems 529
- 11.3 Remote Sensing Satellite Orbits 531
- 11.4 Remote Sensing Satellite Payloads 531
- 11.4.1 Classification of Sensors 531
- 11.4.2 Sensor Parameters 534
- 11.5 Passive Sensors 535
- 11.5.1 Passive Scanning Sensors 536
- 11.5.2 Passive Non-scanning Sensors 539
- 11.6 Active Sensors 540
- 11.6.1 Active Non-scanning Sensors 540
- 11.6.2 Active Scanning Sensors 540
- 11.7 Types of Images 542
- 11.7.1 Primary Images 542
- 11.7.2 Secondary Images 542
- 11.8 Image Classification 545
- 11.9 Image Interpretation 546
- 11.9.1 Interpreting Optical and Thermal Remote Sensing Images 546
- 11.9.2 Interpreting Microwave Remote Sensing Images 547
- 11.9.3 GIS in Remote Sensing 547
- 11.10 Applications of Remote Sensing Satellites 548
- 11.10.1 Land Cover Classification 548
- 11.10.2 Land Cover Change Detection 549
- 11.10.3 Water Quality Monitoring and Management 550
- 11.10.4 Flood Monitoring 551
- 11.10.5 Urban Monitoring and Development 552
- 11.10.6 Measurement of Sea Surface Temperature 552
- 11.10.7 Deforestation 553
- 11.10.8 Global Monitoring 553
- 11.10.9 Predicting Disasters 555
- 11.10.10 Other Applications 558
- 11.11 Major Remote Sensing Missions 558
- 11.11.1 Landsat Satellite System 558
- 11.11.2 SPOT Satellite System 561
- 11.11.3 Radarsat Satellite System 564
- 11.11.4 Indian Remote Sensing Satellite System 565
- 11.12 Future Trends 573
- Further Readings 574
- Glossary 575
- 12 Weather Satellites 577
- 12.1 Weather Forecasting
- An Overview 577
- 12.2 Weather Forecasting Satellite Fundamentals 580.
- 12.3 Images from Weather Forecasting Satellites 580
- 12.3.1 Visible Images 580
- 12.3.2 IR Images 582
- 12.3.3 Water Vapour Images 583
- 12.3.4 Microwave Images 584
- 12.3.5 Images Formed by Active Probing 585
- 12.4 Weather Forecasting Satellite Orbits 586
- 12.5 Weather Forecasting Satellite Payloads 587
- 12.5.1 Radiometer 588
- 12.5.2 Active Payloads 589
- 12.6 Image Processing and Analysis 592
- 12.6.1 Image Enhancement Techniques 592
- 12.7 Weather Forecasting Satellite Applications 593
- 12.7.1 Measurement of Cloud Parameters 594
- 12.7.2 Rainfall 594
- 12.7.3 Wind Speed and Direction 595
- 12.7.4 Ground-level Temperature Measurements 596
- 12.7.5 Air Pollution and Haze 596
- 12.7.6 Fog 596
- 12.7.7 Oceanography 596
- 12.7.8 Severe Storm Support 597
- 12.7.9 Fisheries 598
- 12.7.10 Snow and Ice Studies 598
- 12.8 Major Weather Forecasting Satellite Missions 599
- 12.8.1 GOES Satellite System 599
- 12.8.2 Meteosat Satellite System 605
- 12.8.3 Advanced TIROS-N (ATN) NOAA Satellites 608
- 12.9 Future of Weather Forecasting Satellite Systems 612
- Further Readings 612
- Glossary 613
- 13 Navigation Satellites 614
- 13.1 Development of Satellite Navigation Systems 614
- 13.1.1 Doppler Effect based Satellite Navigation Systems 615
- 13.1.2 Trilateration-based Satellite Navigation Systems 615
- 13.2 Global Positioning System (GPS) 621
- 13.2.1 Space Segment 621
- 13.2.2 Control Segment 622
- 13.2.3 User Segment 623
- 13.3 Working Principle of the GPS 625
- 13.3.1 Principle of Operation 625
- 13.3.2 GPS Signal Structure 627
- 13.3.3 Pseudorange Measurements 628
- 13.3.4 Determination of the Receiver Location 629
- 13.4 GPS Positioning Services and Positioning Modes 631
- 13.4.1 GPS Positioning Services 631
- 13.4.2 GPS Positioning Modes 632
- 13.5 GPS Error Sources 634
- 13.6 GLONASS Satellite System 637
- 13.6.1 GLONASS Segments 638
- 13.6.2 GLONASS Signal Structure 639
- 13.7 GPS-GLONASS Integration 641
- 13.8 EGNOS Satellite Navigation System 642.
- 13.9 Galileo Satellite Navigation Systems 645
- 13.9.1 Three-Phase Development Programme 645
- 13.9.2 Services 646
- 13.10 Indian Regional Navigational Satellite System (IRNSS) 647
- 13.11 Compass Satellite Navigation System 648
- 13.12 Hybrid Navigation Systems 648
- 13.13 Applications of Satellite Navigation Systems 650
- 13.13.1 Military Applications 650
- 13.13.2 Civilian Applications 651
- 13.14 Future of Satellite Navigation Systems 654
- Further Readings 655
- Glossary 656
- 14 Scientific Satellites 658
- 14.1 Satellite-based versus Ground-based Scientific Techniques 658
- 14.2 Payloads on Board Scientific Satellites 659
- 14.2.1 Payloads for Studying Earth's Geodesy 659
- 14.2.2 Payloads for Earth Environment Studies 660
- 14.2.3 Payloads for Astronomical Studies 661
- 14.3 Applications of Scientific Satellites
- Study of Earth 665
- 14.3.1 Space Geodesy 665
- 14.3.2 Tectonics and Internal Geodynamics 669
- 14.3.3 Terrestrial Magnetic Fields 670
- 14.4 Observation of the Earth's Environment 670
- 14.4.1 Study of the Earth's Ionosphere and Magnetosphere 671
- 14.4.2 Study of the Earth's Upper Atmosphere (Aeronomy) 677
- 14.4.3 Study of the Interaction between Earth and its Environment 679
- 14.5 Astronomical Observations 680
- 14.5.1 Observation of the Sun 681
- 14.6 Missions for Studying Planets of the Solar System 686
- 14.6.1 Mercury 691
- 14.6.2 Venus 692
- 14.6.3 Mars 694
- 14.6.4 Outer Planets 697
- 14.6.5 Moon 703
- 14.6.6 Asteroids 705
- 14.6.7 Comets 706
- 14.7 Missions Beyond the Solar System 707
- 14.8 Other Fields of Investigation 710
- 14.8.1 Microgravity Experiments 710
- 14.8.2 Life Sciences 711
- 14.8.3 Material Sciences 712
- 14.8.4 Cosmic Ray and Fundamental Physics Research 713
- 14.9 Future Trends 714
- Further Readings 715
- Glossary 715
- 15 Military Satellites 717
- 15.1 Military Satellites
- An Overview 717
- 15.1.1 Applications of Military Satellites 718
- 15.2 Military Communication Satellites 718.
- 15.3 Development of Military Communication Satellite Systems 719
- 15.3.1 American Systems 720
- 15.3.2 Russian Systems 724
- 15.3.3 Satellites Launched by other Countries 725
- 15.4 Frequency Spectrum Utilized by Military Communication Satellite Systems 726
- 15.5 Dual-use Military Communication Satellite Systems 727
- 15.6 Reconnaisance Satellites 728
- 15.6.1 Image Intelligence or IMINT Satellites 728
- 15.7 SIGINT Satellites 732
- 15.7.1 Development of SIGINT Satellites 733
- 15.8 Early Warning Satellites 735
- 15.8.1 Major Early Warning Satellite Programmes 736
- 15.9 Nuclear Explosion Satellites 738
- 15.10 Military Weather Forecasting Satellites 738
- 15.11 Military Navigation Satellites 739
- 15.12 Space Weapons 739
- 15.12.1 Classification of Space Weapons 740
- 15.13 Strategic Defence Initiative 745
- 15.13.1 Ground Based Programmes 746
- 15.13.2 Directed Energy Weapon Programmes 749
- 15.13.3 Space Programmes 751
- 15.13.4 Sensor Programmes 752
- 15.14 Directed Energy Laser Weapons 752
- 15.14.1 Advantages 753
- 15.14.2 Limitations 753
- 15.14.3 Directed Energy Laser Weapon Components 754
- 15.14.4 Important Design Parametres 755
- 15.14.5 Important Laser Sources 756
- 15.14.6 Beam Control Technology 763
- 15.15 Advanced Concepts 764
- 15.15.1 New Surveillance Concepts Using Satellites 765
- 15.15.2 Long Reach Non-lethal Laser Dazzler 765
- 15.15.3 Long Reach Laser Target Designator 766
- Further Readings 767
- Glossary 767
- 16 Emerging Trends 769
- 16.1 Introduction 769
- 16.2 Space Tethers 769
- 16.2.1 Space Tethers
- Different Types 770
- 16.2.2 Applications 774
- 16.2.3 Space Tether Missions 775
- 16.2.4 Space Elevator 779
- 16.3 Aerostat Systems 781
- 16.3.1 Components of an Aerostat System 782
- 16.3.2 Types of Aerostat Systems 782
- 16.3.3 Applications 783
- 16.4 Millimetre Wave Satellite Communication 784
- 16.4.1 Millimetre Wave Band 784
- 16.4.2 Advantages 785
- 16.4.3 Propagation Considerations 787.
- 16.4.4 Applications 788
- 16.4.5 Millimetre Wave Satellite Missions 789
- 16.5 Space Stations 793
- 16.5.1 Importance of Space Stations 794
- 16.5.2 Space Stations of the Past 794
- 16.5.3 Currently Operational Systems 797
- 16.5.4 Planned Space Stations 799
- 16.5.5 Emerging Space Station Concepts 801
- Further Readings 803
- Glossary 804
- Index 807.