干旱区生态环境知识资源中心(Arid): Data distribution satellite

Arid

报告编号	NASA-CR-187066, NAS 1.26:187066, SSL-TR00722
来源ID	NTRS_Document_ID: 19910007953
	Data distribution satellite
	Price, Kent M.; Jorasch, Ronald E.; Wiskerchen, Michael J.
英文摘要	A description is given of a data distribution satellite (DDS) system. The DDS would operate in conjunction with the tracking and data relay satellite system to give ground-based users real time, two-way access to instruments in space and space-gathered data. The scope of work includes the following: (1) user requirements are derived; (2) communication scenarios are synthesized; (3) system design constraints and projected technology availability are identified; (4) DDS communications payload configuration is derived, and the satellite is designed; (5) requirements for earth terminals and network control are given; (6) system costs are estimated, both life cycle costs and user fees; and (7) technology developments are recommended, and a technology development plan is given. The most important results obtained are as follows: (1) a satellite designed for launch in 2007 is feasible and has 10 Gb/s capacity, 5.5 kW power, and 2000 kg mass; (2) DDS features include on-board baseband switching, use of Ku- and Ka-bands, multiple optical intersatellite links; and (3) system user costs are competitive with projected terrestrial communication costs.
英文关键词	COMMUNICATION NETWORKS COMMUNICATION SATELLITES DATA SYSTEMS NETWORK CONTROL NETWORK SYNTHESIS SATELLITE NETWORKS SPACE COMMUNICATION COST ESTIMATES DATA LINKS LIFE CYCLE COSTS PAYLOADS REAL TIME OPERATION RELAY SATELLITES SPACECRAFT DESIGN TRACKING NETWORKS USER REQUIREMENTS
出版年	1991
报告类型	Technical Report
语种	英语
国家	美国
URL	http://hdl.handle.net/2060/19910007953
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/259182
推荐引用方式 GB/T 7714	Price, Kent M.,Jorasch, Ronald E.,Wiskerchen, Michael J.. Data distribution satellite,1991.