An Introduction to Satellite Communications
D. I. Dalgleish
P. Peregrinus, Jan 1, 1989 - Technology & Engineering - 338 pages
The aim of this book is to give a clear and concise exposition of the principles and practice of satellite communications for newcomers to the subject. It should prove useful both to engineers who have worked in other fields of telecommunications and to students. The book describes the development of communications-satellite services and explains how satellites and earth stations have evolved to meet changing requirements. It deals in a simple but practical way with the physics and geometry of the geostationary orbit, and the construction and operation of satellites and launch vehicles. It gives a thorough analysis of the essential factors governing the quality of speech, data and television signals received via satellite. Particular attention is paid to growth areas in satellite communications, including analogue television transmission, digital methods of transmission of speech and data, the use of satellites for maritime, aeronautical and land-mobile communications and VSATs.
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Satellites and launchers
The RF transmission path
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allocated amplifiers amplitude attenuation axis backoff bandwidth baseband bit rate BPSK burst carrier characteristics circuits communications satellites communications-satellite system companding comprises corresponding demodulator deviation diameter earth stations earth-station antennas EIRP encoding equipment error example FDM assembly FDM—FM filter frequency band gain geostationary orbit geostationary satellite group delay HPAs increase INMARSAT input INTELSAT INTELSAT system interference kbit/s L-band large number launch vehicle launcher Link Budget maritime maximum methods mobile modulation multiplex noise power noise temperature operation output power polarisation possible power ratio pre-emphasis programmes QPSK quantisation radiation radio received reduce reﬂectors relatively RF bandwidth samples satellite communications satellite systems SCPC Section ships sidelobes signal solar specified spectrum speech spin-stabilised spot beams Standard-A switching TDMA TDMA system television terminals terrestrial stations traffic transmission transmitted transponder usually