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:
Aug. 01, 2023
Filed:
Jun. 05, 2020
Star Ally International Limited, Tortola, VG;
Wensheng Hua, Fremont, CA (US);
Jie Ding, Plymouth, MN (US);
STAR ALLY INTERNATIONAL LIMITED, Tortola, VG;
Abstract
A positioning method that into account frequently changing ionosphere delays. The method includes: (a) including, in the pseudo-range determination associated with each signal received from various signal sources, a function that represents the environmental bias by one or more parameters, in addition to parameters representing the position of the signal receiver and a clock drift of the signal receiver; and (b) jointly solving for values of the parameters of the function and the parameters representing the position of the signal receiver and the clock drift of the signal receiver. The environmental bias may be an ionosphere delay, which may be modeled by a function having parameters that relate to an Ionosphere Pierce Point (IPP) of the signal received. The function may characterize the ionosphere delay as a function of variations in longitude and latitude from the signal source.