Verfahren und Systeme zur Bereitstellung Regionaler Korrekturinformationen für Positionierungszwecke

Details

Veröffentlichungs-Nr.

EP4546014

Aktenzeichen

EP23206396

Anmeldetag

27. Oktober 2023

Veröffentlichung

30. April 2025

Rechtsraum

EP

IPC

G01S19/07// G01S19/44

Abstract

The invention relates to methods for providing information for use by a navigation satellite system (NSS) receiver and/or processing entity receiving data therefrom, for positioning purposes. In one embodiment, satellite orbit information and satellite clock error information applicable over a wide area and to epoch t₁ is obtained (s10) for each of a plurality of NSS satellites. Ambiguities in the carrier phase of NSS signals received at epoch t₁ at narrow area reference stations are estimated (s20). For each satellite, the satellite orbit and satellite clock error at epoch t₂ are predicted (s30). A residual error for modelling errors having a common or substantially common line-of-sight dependency is estimated (s40a). The residual error is added (s50a) to the predicted satellite clock error to form a redefined satellite clock error. The invention also relates to variants of the above-mentioned method, and to systems, computer programs, and computer program products.

Anmelder

Firma

Trimble Inc.

Land

🇺🇸 USA

Fachgebiete