Method of estimating the error in the calculation of the position of a mobile by a GPS receiver, and GPS receiver for implementing this method
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United States of America Patent
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Dec 13, 1994
Grant Date -
N/A
app pub date -
Oct 5, 1993
filing date -
Oct 8, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a method of calculation by a GPS receiver of the position of a mobile in space and time relative to a predetermined frame of reference, the position is calculated from data supplied by at least four GPS satellites selected by the GPS receiver to form a calculation constellation. The method includes the step of estimating the error in the position calculation. This error is estimated by the GPS receiver for each calculated position. The estimated error therefore varies with the position of the mobile.
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