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:
Oct. 17, 2023
Filed:
Jul. 13, 2021
Spirent Communications Plc, Crawley, GB;
Jeremy Charles Bennington, Greenwood, IN (US);
Raphael Grech, Torquay, GB;
Dennis Berres, Farmington Hills, MI (US);
Rafal Zbikowski, Paignton, GB;
Colin Richard Ford, Carmarthen, GB;
Richard West, Paignton, GB;
Paul Hansen, Cambridge, GB;
Arthur Edward Neeves, Saint Augustine, FL (US);
Esther Anyaegbu, Northampton, GB;
Adam Gleave, Plymouth, GB;
Ronald Toh Ming Wong, Paignton, GB;
Spirent Communications PLC, Crawley, GB;
Abstract
The technology disclosed teaches a method of improving accuracy of a GNSS receiver that has a non-directional antenna, with the receiver sending CDN a request for predictive data for an area that includes the receiver. Responsive to the query, the method includes receiving data regarding LOS visibility for the receiver with respect to individual satellites, and the receiver using the data for satellite selection, for choosing some and ignoring other individual satellites. Also disclosed is using the data to exclude from satellite selection at least one individual satellite based on lack of LOS visibility to the individual satellite. Further disclosed is recognizing and rejecting spoofed GNSS signals received by a GNSS receiver that has a non-directional antenna, in response to a CDN response to a request for predictive data for an area that includes the receiver, with the receiver comparing the data with measures of signals received from individual satellites.