Position fix from three GPS satellites and altitude: a direct method
Abstract
A method to find a direct solution to GPS equations given four pseudo-range measurements and satellite positions is given by L.O. Krause [1987]. This method is modified here to find a direct solution given three pseudo-ranges and satellite positions and altitude above the reference ellipsoid.
- Publication:
-
IEEE Transactions on Aerospace and Electronic Systems
- Pub Date:
- January 1999
- DOI:
- Bibcode:
- 1999ITAES..35..350P
- Keywords:
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- Global Positioning System;
- Ellipsoids;
- Navigation;
- Clocks;
- Satellite ground stations;
- Position measurement;
- Differential algebraic equations;
- Shape measurement;
- Difference equations;
- Earth