| 摘要 |
Method for authenticating the position X(t) of a mobile element (1), a mobile element comprising at least a GNSS receiver, r, having a function of estimating the position X(t) of that mobile element (1), this method being characterized in that it comprises, in combination, at least the following steps: .cndot. determining one or more items of data (21) associated with the position X of a GNSS receiver, .cndot. extracting reference data associated with the position X from a cartographic database (23), .cndot. determining at least one consistency indicator (22) Ic(X) using the first item of data associated with the said receiver r and the reference data coming from the cartographic database, .cndot. filtering the said indicator or indicators Ic(X), in order to improve the detection rate or the false alarm rate, .cndot. authenticating (24) the position X of the said mobile element (1) using one or more of the said consistency indicators Ic(X) in an authenticity decision function.
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