Start Date
4-1971 8:00 AM
Description
During the last decade a variety of ground- and airbased radio aids have been implemented in efforts to solve major military problems in navigation and guidance, and command, control and communications. Because of significant advances in space technology and avionics, satellite-based systems to provide position-fixing data by means of ranging and range-differencing techniques, and to provide communications capability, have been shown to be feasible and attractive, and to have unique technical and operational advantages. World-wide coverage, essentially instantaneously availability, and threedimensional position-fixing accuracy of a few tens of feet seem feasible. In the civil area, demand for improved communications over the oceans, and for improved air traffic control over both the U.S. and the oceans, may be met by space-based systems. Indeed, the Office of Telecommunications Policy has recently called for a satellite telecommunications service for over-ocean aeronautical operations. A developing view supports the use of satellite-ranging techniques and satellite communications to provide for certain fundamental air traffic control functions over the U. S. in the period through the 1990s. From a satellite and data processing point of view, it appears feasible to implement in the early 1980s a system which could provide surveillance data to the order of 100 feet in three dimensions; an emergency communications capability corresponding to the operational notion of intermittent positive control; data for accurate autonomous navigation and for terminal approach and blind landing. These capabilities would be available to aircraft to an extent depending on its investment in avionics. To accomplish the implied objectives requires the establishment of organized and systematic R&D programs, including a well conceived evaluation methodology.
The Application of Ranging Techniques to Navigation and Traffic Control
During the last decade a variety of ground- and airbased radio aids have been implemented in efforts to solve major military problems in navigation and guidance, and command, control and communications. Because of significant advances in space technology and avionics, satellite-based systems to provide position-fixing data by means of ranging and range-differencing techniques, and to provide communications capability, have been shown to be feasible and attractive, and to have unique technical and operational advantages. World-wide coverage, essentially instantaneously availability, and threedimensional position-fixing accuracy of a few tens of feet seem feasible. In the civil area, demand for improved communications over the oceans, and for improved air traffic control over both the U.S. and the oceans, may be met by space-based systems. Indeed, the Office of Telecommunications Policy has recently called for a satellite telecommunications service for over-ocean aeronautical operations. A developing view supports the use of satellite-ranging techniques and satellite communications to provide for certain fundamental air traffic control functions over the U. S. in the period through the 1990s. From a satellite and data processing point of view, it appears feasible to implement in the early 1980s a system which could provide surveillance data to the order of 100 feet in three dimensions; an emergency communications capability corresponding to the operational notion of intermittent positive control; data for accurate autonomous navigation and for terminal approach and blind landing. These capabilities would be available to aircraft to an extent depending on its investment in avionics. To accomplish the implied objectives requires the establishment of organized and systematic R&D programs, including a well conceived evaluation methodology.
Comments
No other information or file available for this session.