Satellite communications system and apparatus
作者： Paul Baran
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摘要: A satellite communications system, which is inherently power limited, employing spread spectrum techniques in order to trade-off bandwidth for small ground station antennas. In a one-way system embodiment central transmits data relay large number of antenna receiving stations, the transmissions being encoded with spreading code lengths selected provide adequate recovery at least sensitive are directed. Spreading codes may also function address particular stations. two-way embodiment, additionally functions as terrestrial station. plurality transmitting one be same site station, transmit division multiplexed via using sufficiently long and distinct permit error rates distinguish various The reformats received retransmission
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