The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 2001
Filed:
Dec. 07, 1998
Jean-Pierre Arethens, Beaumont les Valence, FR;
Sextant Avionique, Velizy Villacoublay, FR;
Abstract
A satellite positioning receiver with integrity check and exclusion of defective axes. In order to improve the reliability of the measurements which are divergent with respect to the measurements provided by the other satellites in the constellation which is used at a given time. The invention proposes a solution for more rapidly recalculating the position by eliminating the data from a defective satellite: the means for calculating the position vector X on the basis of n satellites include an iteration process with n steps, the j,step involving the j,satellite; a position X′ is recalculated using only n−1 satellites on the basis of the n steps already calculated, by adding an (n+1),iteration step, using the measurements from the defective satellite of rank m, this last step being slightly different from the previous ones and the difference being such that the calculation result after this (n+1),step is identical to that which an iteration with n−1 steps excluding the divergent satellite of rank m would give.