Satellite signal receiver with position extrapolation filter
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United States of America Patent
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-
Feb 27, 2001
Grant Date -
N/A
app pub date -
Dec 7, 1998
filing date -
Jun 7, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A GPS satellite signal receiver fitted on an aircraft. Velocity measurements are used to obtain position values at a sufficient rate to provide position extrapolation while waiting for the next position measurement. A corrected position is provided on the basis of a measured position by adding to the preceding corrected position, the velocity integrated between two times and a smoothing term which is a fraction of the difference between the measured position and the corrected position at the preceding position measurement time.
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