Page 6 - Satellite Communications, Fourth Edition
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Dennis Roddy iv
2.9.9 The subsatellite point 64
2.9.10 Predicting satellite position 66
2.10 Local Mean Solar Time and Sun-Synchronous Orbits 66
2.11 Standard Time 70
2.12 Problems 71
References 75
Chapter 3. The Geostationary Orbit 77
3.1 Introduction 77
3.2 Antenna Look Angles 78
3.3 The Polar Mount Antenna 85
3.4 Limits of Visibility 87
3.5 Near Geostationary Orbits 89
3.6 Earth Eclipse of Satellite 92
3.7 Sun Transit Outage 94
3.8 Launching Orbits 94
3.9 Problems 99
References 101
Chapter 4. Radio Wave Propagation 103
4.1 Introduction 103
4.2 Atmospheric Losses 103
4.3 Ionospheric Effects 104
4.4 Rain Attenuation 106
4.5 Other Propagation Impairments 111
4.6 Problems and Exercises 111
References 112
Chapter 5. Polarization 115
5.1 Introduction 115
5.2 Antenna Polarization 120
5.3 Polarization of Satellite Signals 123
5.4 Cross-Polarization Discrimination 128
5.5 Ionospheric Depolarization 130
5.6 Rain Depolarization 131
5.7 Ice Depolarization 133
5.8 Problems and Exercises 133
