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:
May. 01, 2018
Filed:
Aug. 13, 2015
Trimble Inc., Sunnyvale, CA (US);
Xiaoming Chen, Höhenkirchen-Siegertsbrunn, DE;
Andrea Nardo, Höhenkirchen-Siegertsbrunn, DE;
Trimble Inc., Sunnyvale, CA (US);
Abstract
The invention relates to methods, apparatuses and computer programs for generating receiver-specific correction information for correcting pseudorange observations. The method comprises: receiving raw observations obtained by the NSS receiver observing NSS multiple frequency signals from a plurality of NSS satellites over multiple epochs; obtaining precise satellite information on: (i) the orbit position of each of the satellites, (ii) a clock offset of each of the satellites, and (iii) a set of biases associated with each of the satellites; estimating ambiguities in the carrier phase of the received raw observations, using the precise satellite information, or information derived therefrom; computing combination values based on the received raw observations together with the estimated ambiguities, to cancel out the effects of the geometry, the effects of the clocks, troposphere and ionosphere; and generating the correction information per satellite, based on the computed combination values.