ACCURACY OF A GNSS RECEIVER THAT HAS A NON-DIRECTIONAL ANTENNA

ACCURACY OF A GNSS RECEIVER THAT HAS A NON-DIRECTIONAL ANTENNA

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 visibil...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Anyaegbu, Esther, Neeves, Arthur Edward, Grech, Raphael, Zbikowski, Rafal, Gleave, Adam, Ford, Colin Richard, West, Richard, Wong, Ronald Toh Ming, Berres, Dennis, Hansen, Paul, Bennington, Jeremy Charles
Format: Patent
Sprache:eng
Schlagworte:
ANALOGOUS ARRANGEMENTS USING OTHER WAVES
DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES
LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES
MEASURING
PHYSICS
RADIO DIRECTION-FINDING
RADIO NAVIGATION
TESTING
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Beschreibung
Zusammenfassung: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.