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:
Dec. 01, 2020
Filed:
Dec. 19, 2016
Swiss Timing Ltd, Corgemont, CH;
Friedrich-alexander-universitaet Erlangen-nuernberg, Erlangen, DE;
Swiss Timing Ltd, Corgemont, CH;
Friedrich-Alexander-Universitaet Erlangen-Nuernberg, Erlangen, DE;
Abstract
A method for calibrating a time difference of arrival-based local positioning system for k−D localization, k=2 or 3, includes collecting N sets of time difference of arrival measurements related to a mobile node, N≥2, each nset of measurements being performed by Bn beacon nodes among B beacon nodes of the positioning system while the mobile node is located is a nposition within a region covered by the positioning system, Bn≥k+2, and determining optimal beacon positions that minimize an objective function depending on N residual error vectors, the calculation of each nposition of the mobile node using beacon positions and the nset of measurements, the calculation allowing the calculation of the nresidual error vector.