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- W2055415212 abstract "We describe an algorithm for navigation state estimation during planetary descent to enable precision landing. The algorithm automatically produces 2D-to-3D correspondences between descent images and a surface map and 2D-to-2D correspondences through a sequence of descent images. These correspondences are combined with inertial measurements in an extended Kalman filter that estimates lander position, velocity and attitude as well as the time varying biases of the inertial measurements. The filter tightly couples inertial and camera measurements in a resource-adaptive and hence real-time capable fashion. Results from a sounding rocket test, covering the dynamic profile of typical planetary landing scenarios, show estimation errors of magnitude 0.16 m/s in velocity and 6.4 m in position at touchdown. These results vastly improve current state of the art and meet the requirements of future planetary exploration missions." @default.
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- W2055415212 date "2007-05-07" @default.
- W2055415212 modified "2023-10-03" @default.
- W2055415212 title "A General Approach to Terrain Relative Navigation for Planetary Landing" @default.
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- W2055415212 doi "https://doi.org/10.2514/6.2007-2854" @default.
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