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The Navigation of Navigation Satellites
Journal of Navigation, 1986The orbits of navigation satellites have to be determined very precisely. The Transit broadcast (predicted) ephemeris, which is computed by the US Navy Astronautics Group, has an estimated orbital positional accuracy of the order of 25 m in each direction.
V. Ashkenazi, T. Moore
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2016
Navigation is a main challenge for the operation of an autonomous satellite. This paper deals with the problem of pose estimation for real-time vision based navigation system. Presented method is able to estimate the target pose with high accuracy and does not require any landmark on the object. The results of numerical simulation were presented.
Mariusz Jacewicz, Robert Glebocki
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Navigation is a main challenge for the operation of an autonomous satellite. This paper deals with the problem of pose estimation for real-time vision based navigation system. Presented method is able to estimate the target pose with high accuracy and does not require any landmark on the object. The results of numerical simulation were presented.
Mariusz Jacewicz, Robert Glebocki
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Aircraft Engineering and Aerospace Technology, 1991
AT the 1991 International Conference of the Royal Institute of Navigation the opening address was by Olaf Lundberg, director general of Inmarsat and many civil and military specialists presented papers on a variety of topics relating to satellite navigation for land, sea and air purposes.
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AT the 1991 International Conference of the Royal Institute of Navigation the opening address was by Olaf Lundberg, director general of Inmarsat and many civil and military specialists presented papers on a variety of topics relating to satellite navigation for land, sea and air purposes.
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Satellite-Based Navigation Systems
2012This chapter focuses on various satellite-based navigation systems. The most well-known and widespread system currently used for localization of a radio-receiving terminal is the global positioning system (GPS). All GPS satellites share the same frequency bands, making use of the code division multiple access (CDMA) technique. The transmitted signal on
Bacci G. +5 more
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A Virtual Laboratory on satellite-based navigation
Control Engineering Practice, 2001A primary objective in the development of a navigation system is to test the effectiveness of its algorithms together with their capability of operating in real time. With this in mind a Virtual Laboratory capable of simulating the main features of general aviation aircraft navigational sensors together with their interface to the on-board computer has
BERTONI, GIANNI +3 more
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Navigation Satellite Constellations and Navigation Signals
2021Ground-based radio navigation had been used for more than half a century before the first GPS satellite was launched in the late 1970s. Many radio navigation systems have been developed and put into use since the early of 20th century, including Telefunken Kompass Sender (radio direction finder), Decca (Decca Navigator System), (VOR) VHF ...
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Threats to satellite navigation systems
Network Security, 2015Global Navigation Satellite System (GNSS) solutions are everywhere now. The capabilities of what many people loosely term GPS can be found not just in cars and aircraft, but are increasingly being integrated into many portable devices and are a key function in the Internet of Things (IoT).
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Navigation at sea by satellite
Journal of Geophysical Research, 1966An AN/SRN-9 integral Doppler equipment, developed by the Applied Physics Laboratory of the Johns Hopkins University to give a ship's position at sea when used with navigation satellites, was used on Robert D. Conrad for 9 months in the Atlantic, Pacific, and Indian oceans.
M. Talwani +3 more
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