| 摘要 |
<p>Method for correcting position estimations by selecting pseudo-5 distance measurementsThe subject of the invention is a method for correcting position estimations, an enhanced position Xhuber being determined by application of a robust10 estimation algorithm (104) using N measurements (102) of pseudo-distances pi corresponding to the distance measured between a navigation receiver and N satellites and an estimation Xprim of the position of said receiver (103) made by said receiver. The method comprises at least the following steps: a step for determining normed residue values Arihuber from the residues APihuber15 of pseudo-distances from the measurements pi, a step (111) for determining E subsets (105, 106), a subset comprising N-k normed residue values Arihuber, k being an integer strictly greater than 1, a step for selecting the subset SEO with the smallest standard deviation CrsE0, a step for selecting non-aberrant measurements (107), a measurement being selected if the difference20 between the normed residues Arihuber and the mean PSGO of the normed residues of the subset SE0 is less than a predetermined threshold value T1, a step for determining a corrected estimation Xcin of the position from the selected measurements.25 FIG. 1</p> |
