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US 2020/0025571 A1Published application
Navigation system
AssigneeAtlantic Inertial Systems Limited
InventorsAlastair Skilton, Nicholas Robert Geoffrey Wilkinson
Life of this patent
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AssigneeAtlantic Inertial Systems Limited
InventorsAlastair Skilton, Nicholas Robert Geoffrey Wilkinson
Estimating the term…
A navigation system comprising: an inertial navigation system, INS, arranged to provide an INS position estimate and an INS attitude estimate; a terrain based navigation system arranged to provide a terrain based position estimate; a star tracker system arranged to provide a star tracker position and/or attitude estimate; a navigation filter arranged to receive the INS position estimate, the terrain based position estimate, the INS attitude estimate and the star tracker position and/or attitude estimate; the navigation filter arranged to determine an INS error state based at least on the INS position estimate, the terrain based position estimate, the INS attitude estimate and the star tracker position and/or attitude estimate; and the navigation system arranged to output a navigation solution comprising the INS position estimate corrected by the INS error state and the INS attitude estimate corrected by the INS error state.
A navigation system comprising:
A method of determining an INS error state, the method comprising:
Dependencies are inferred from the claim text.