Data processing: vehicles – navigation – and relative location – Navigation – Employing position determining equipment
Reexamination Certificate
2004-06-03
2008-08-05
Camby, Richard M. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Navigation
Employing position determining equipment
C342S121000
Reexamination Certificate
active
07409293
ABSTRACT:
A navigation system is described which includes a navigation processor, an inertial navigation unit configured to provide a position solution to the navigation processor, and a digital elevation map. The described navigation system also includes a radar altimeter having a terrain correlation processor configured to receive map data from the digital elevation map and provide a position solution based on radar return data to the navigation processor. A map quality processor within the navigation system is configured to receive map data from the digital elevation map and provide a map quality factor to the navigation processor which weights the position solution from the terrain correlation processor according to the map quality factor and determines a position solution from the weighted terrain correlation processor position solution and the position solution from the inertial navigation unit.
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Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, or the Declaration with International Search Report, Jan. 3, 2007, 6 pgs.
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Almsted Larry D.
Hager James R.
Camby Richard M.
Fogg & Powers LLC
Honeywell International , Inc.
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