Mobile Satellite Communications

The book offers a complete discussion of mobile satellite orbital dynamics. The authors take an easy-to-understand approach to the satellite position determination principle, and they provide a compact, practical procedure for making orbit calculations. Vehicle antennas, their requirements, gain, beam width, phased arrays, and satellite tracking are also explored. Signal propagation problems and counter methods are discussed in detail in marine, aeronautical and land environments. The book also looks ahead to forthcoming technologies, including satellite phone systems using both geostationary and non-geostationary orbits.

Mobile Satellite Communications is an essential resource for antenna and satellite tracking system designers, engineers, and researchers involved in this expansion. It's also highly appropriate for students at both graduate and undergraduate levels.

Table of contents

1. Introduction:

Overview of Mobile Satellite Communications

Classification of Satellite Communications

History of Mobile Satellite Communications

International Coordination

2. Mobile Satellite Orbits:

Circular Orbit

Elliptical Orbit Geostationary Orbit

Calculating the Range, Azimuth, and Elevation

3. System Design:

System Configuration

Main Parameters in Link Budget

Relation Between Transmitted and Received Power

Signal-to-Noise Ratio in Satellite Communication Links

Key Technologies for Mobile Satellite Communication Systems

Mobile Satellite Transponders

Frequency Intereference

4. Vehicle Antennas:

Requirements for Antennas

Basic Knowledge of Antennas

Basic Antennas

Phased Array Antennas

Satellite Tracking

Sensors

5. Propagation Problems:

Basic Knowledge of Propagation

Propagation in Land Mobile Satellite Communications

Propagation in Maritime Satellite Communications

Propagation in Aeronautical Satellite Communications

6. Digital Communications Technologies:

Modulation and Demodulation

Error-Control Techniques

Coded Modulation

Digital Speech Coding

Multiple Access Techniques

7. Operational and Forthcoming Systems:

Satellite Systems Using Geostationary Orbits -- GEOs

Little LEO Satellite Systems

Big LEO Satellite Systems

Broadband Systems

HEO Systems

8. Mobile Earth Stations:

INMARSAT-A

INMARSAT-B

INMARSAT-C

INMARSAT-M

INMARSAT-Aero

Land Mobile Earth Station

Hand-Carried Terminals

9. Radio Navigation:

Range Navigation

Range-Difference Navigation

Doppler Navigation

10. Mobile Broadcasting:

System Requirements for Digital Audio Broadcasting Services

Digital Audio Broadcasting (DAB)

11. Future Systems -- Towards Intelligent Satellites:

Intelligent Satellites

Examples of Intelligent Satellites