Results 151 to 160 of about 131,960 (212)
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Offshore Technology Conference, 1970
ABSTRACT In certain types of offshore operations, particularly minerals exploration, there is a need for a small fully automatic navigation system which presents position data in such a form that it can be used to steer the vessel without need for further computation or reference to specially prepared charts. Such a
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ABSTRACT In certain types of offshore operations, particularly minerals exploration, there is a need for a small fully automatic navigation system which presents position data in such a form that it can be used to steer the vessel without need for further computation or reference to specially prepared charts. Such a
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Mariner Jupiter/Saturn 1977 navigation strategy
Guidance and Control Conference, 1975This paper presents selected navigational aspects of the Mariner Jupiter/Saturn 1977 mission. Emphasis is given to the trajectory correction strategy. In addition to science return and propellant costs, specific considerations affecting the strategy include a large number of candidate trajectories, relatively close satellite flybys, use of trajectory
E. L. McKinley, R. E. Van Allen
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Navigation, 1964
a navigation system based upon the Navy's low-drift, high-precision, Electrically Suspended Gyros has been demonstrated to have surprisingly low error over long periods of time. By taking full advantage of this experience and other recent advances in the electronics art, a new, all-weather, non-radiating, automatic system is now possible.
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a navigation system based upon the Navy's low-drift, high-precision, Electrically Suspended Gyros has been demonstrated to have surprisingly low error over long periods of time. By taking full advantage of this experience and other recent advances in the electronics art, a new, all-weather, non-radiating, automatic system is now possible.
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Calculators for Marine Navigation
Journal of Navigation, 1981This paper, which was presented at an Ordinary Meeting of the Institute in London on 18 March 1981 with Dr J. F. Kemp in the Chair, outlines the scope for using modern programmable hand-held calculators at sea, discusses the functions and facilities required for navigation and describes some of the models now available.For many years the basic ...
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Marine Integrated Navigation System
Navigation, 1969This paper describes a new concept for solving the age-old “navigation problem” confronting the conning officer on commercial seagoing vessels. Unlike other navigational devices, this total systems approach stresses the point that in order for a system to be truly effective it must be capable of (a) collecting all available navigational data rapidly on
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Journal of Navigation, 1983
Seafaring has always been an occupation which exposes the seafarer to more than an ordinary degree of risk, and a significant part of that risk arises from his inability always to know his position with sufficient accuracy as and when needed. This lack of precision has always had a fundamental impact on the practice of navigation, the development of ...
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Seafaring has always been an occupation which exposes the seafarer to more than an ordinary degree of risk, and a significant part of that risk arises from his inability always to know his position with sufficient accuracy as and when needed. This lack of precision has always had a fundamental impact on the practice of navigation, the development of ...
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Marine navigation traffic control system
Electrical Engineering, 1961A system of marine navigation for channel, harbor, and bay areas has been developed that is independent of weather and darkness, and of human error. Two transmitters, operating on different frequencies, feed two cable loops located in the bed of the channel.
O. A. Kolody, G. A. Praver
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Automation in Marine Navigation
Journal of Navigation, 1959Automation has proceeded much further in connection with air navigation and air traffic control than it has in comparable aspects of the maritime service. There are many factors to account for this. By its nature, air travel involves risks which are greater and more urgent than those of sea travel and which, in focal areas, are high in all conditions ...
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ACCURACY OF MARINE NAVIGATION*
Navigation, 1951Modern navigation might be dated from the invention of the marine sextant in 1734, followed by the invention of the marine chronometer in 1766. These developments made it possible to determine longitude as well as latitude at sea. The steady developments of nautical tables, almanacs, and the further refinements of sextants and timepieces gave an ...
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Satellite navigation in marine fleet
Proceedings of The 2nd International Conference on Satellite Communications, 1996Reliable navigational support is of great importance for the safety of navigation, efficient operation of vessels and prevention of ecological disasters. This report reviews the international and national requirements for the navigational facilities of ships in various sailing conditions and the resources to meet them through operation of the global ...
Yu.C. Zurabov, I.N. Michtchenko
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