The only work to present a unified treatment of all the basic aspects of satellite communications and to give practical examples from real systems. Whereas most texts in the field concentrate on a mathematical description of the communications link, "Satellite Communications" gives the reader a thorough knowledge of the subject by going on to cover orbits, propagation, and the equipment that comprises a working system. Pratt and Bostian go beyond the standard treatment of ideal channels (which ignores some very real practical limitations) to deal with the problems associated with transmitting digitally modulated signals through real satellites and earth stations. Included are chapters on orbital mechanics, spacecraft construction, satellite-path radio wave propagation, modulation techniques, multiple access, and a detailed analysis of the communications link. Contains worked examples and homework problems based on current industrial practice.
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ORBITAL ASPECTS OF SATELLITE COMMUNICATIONS
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amplifier amplitude analog antenna gain antenna noise temperature aperture efficiency attenuation axis band bandwidth baseband beam beamwidth bit error rate block BPSK burst calculated carrier carrier-to-noise ratio Cassegrain antenna CCIR codeword communication system communications satellites decibels demodulator density detected diameter downlink earth station earth station antenna EIRP elevation angle encoder equation example FDM/FM/FDMA FDMA feed filter frame frequency geostationary orbit horn IEEE Inmarsat input Intelsat launch loss main reflector modulation multiple access multiplexing noise power number of channels operation parity path pattern percent phase plane PN sequence polarization propagation pulse QPSK quantization radiation radio rain rate reference Reprinted Satellite Communications satellite link Satellite Systems sequence sidelobe signal signal-to-noise ratio spacecraft subreflector subsatellite point symbol system noise temperature TDMA techniques telephone channels traffic transmission transmitted transponder typical uplink voice channel voltage waveform waveguide