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:
Sep. 30, 2025
Filed:
Jun. 12, 2023
National Time Service Center, Chinese Academy of Sciences, Xi'an, CN;
Kan Wang, Xi'an, CN;
Abstract
An LEO-augmentation-based convergence time shortening method of wide-area UDUC PPP-RTK positioning is provided, which includes: establishing UDUC PPP-RTK network end observation equations of GNSSs, and integrating navigation signals of an LEO satellite navigation system into the UDUC PPP-RTK network end observation equations, to obtain LEO-integrated GNSS UDUC PPP-RTK network end observation equations; solving network end parameters of the LEO-integrated GNSS UDUC PPP-RTK network end observation equations; correcting user end GNSS UDUC observation equations and user end LEO UDUC observation equations according to the network end parameters; solving corrected user end GNSS UDUC observation equations and corrected user end LEO UDUC observation equations, to obtain a user end positioning vector in an ambiguity-float mode; and a user end float ambiguity vector and its variance-covariance matrix; and using the user end float ambiguity vector and the variance-covariance matrix to perform the PAR; and obtain PPP-RTK user positioning in a PAR-enabled mode.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile