Chapters eight through twelve cover applications that include non-geostationary satellite systems, low throughput systems, direct broadcast satellite television, Internet access by satellite, and global navigation satellite systems. Chapters four through seven cover the principles of digital communication systems, radio frequency communications, digital modulation and multiple access techniques, and propagation in the earth’s atmosphere, topics that are common to all radio communication systems. In the third edition, chapters one through three cover topics that are specific to satellites, including orbits, launchers, and spacecraft. While distribution of television programming remains the largest sector of commercial satellite communications, low earth orbit constellations of satellites for Internet access are set to challenge that dominance. There has been a complete transition from analog to digital communication systems, withanalog techniques replaced by digital modulation and digital signal processing. There have been many changes in the thirty three years since the first edition of Satellite Communications was published. Extensive revision of the best-selling text on satellite communications ― includes new chapters on cubesats, NGSO satellite systems, and Internet access by satellite.
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