Architectural trends in military satellite communications systems
Article Abstract:
Both military and commercial systems are currently used by the Dept of Defense to meet its demand for satellite communications. Current systems include the UHF Fleet Satellite Communications systems, which is made up of government-owned FLTSATs and leased-service from contractor-owned LEASAT satellites. FLTSAT systems supply beyond-line-of-sight communications to the tactical/mobile user community. The Airforce Satellite Communications System is used to disseminate emergency action messages to the nuclear-capable forces; the system is used by small ground-transportable and airborne terminals. The Defense Satellite Communications System is used by fixed and transportable terminals and a small number of mobile terminals that support naval and air operations. The capacity of current systems to communicate with large numbers of small terminals is limited. A new EHF (Milstar) system is scheduled to be available in the early 1990s; it will be used by tactical and strategic users who need enhanced anti-jam and LPI protection. Technology must focus on high-gain satellite antennas with several simultaneous spot beams and onboard signal processing to alleviate shortcomings of present systems.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1990
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Expert system technology for the military: selected samples
Article Abstract:
Military use of expert systems is rapidly growing because of the increasing complexity of weapons systems and warfare and the need of military leaders to make ever faster operational decisions. The Defense Department is making major investments in expert systems development. Several military expert systems are extensively described, including the Navy's BATTLE consultant system for weapons allocation, ship identification advice systems, systems for maintenance and troubleshooting of military equipment, and the Advanced Digital Radar Imagery Exploitation System. Extensive work is also being done on machine learning systems that modify themselves to adjust to new situations and improve performance and distributed problem solving systems for linking multiple expert systems to handle complex, multiple-domain military problems. Trends in military expert system research are described.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1988
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