Method and apparatus for reconstructing time of transit from...

Details Method and apparatus for reconstructing time of transit from... Method and apparatus for reconstructing time of transit from...

G - Physics

01

S

G01S 5/14 (2006.01)

Patent

CA 2617142

The invention provides a GPS device that resolves timing errors as applicable to an AGPS navigation solution. A single state algorithm provides rapid convergence, typical with standard Newton-Raphson performance. Problems due to ill-conditioning of the input matrix are identified by an augmented DOP calculation procedure, which may be used to identify unreliable results or to estimate the errors for those results.

L'invention porte sur un dispositif GPS résolvant les erreurs de synchronisation qui peut être appliqué à une solution de navigation AGPS. Un algorithme à état unique fournit une convergence rapide, typique d'une performance Newton-Raphson standard. On identifie les problèmes liés à un mauvais conditionnement de la matrice d'entrée par une procédure de calcul DOP augmentée, qui peut servir à identifier les résultats non fiables ou à estimer les erreurs dues à ces résultats.

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