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US 10,871,578 B2Granted
Differential correction map for GNSS
AssigneeiBiquity Digital Corporation
InventorsBrian Kroeger, Paul J. Peyla, Steven L. Teig
Life of this patent
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Abstract
A method comprises generating for a Global Navigation Satellite System (GNSS) a differential correction map (DCM) representing a non-planar surface of differential corrections that varies across a geographical area represented by the DCM, the differential corrections being based on a reference station constellation of GNSS reference stations having respective locations spanning the geographical area, the GNSS reference stations including physical or virtual reference stations.
Claims31
A method comprising:
- accessing aggregated differential correction information from a database;
- and
- generating, from the aggregated differential correction information, for a Global Navigation Satellite System (GNSS) a differential correction map (DCM) representing a non-planar surface of differential corrections that varies across a geographical area represented by the DCM, the differential corrections being based on a reference station constellation of GNSS reference stations having respective locations spanning the geographical area, the GNSS reference stations including physical or virtual reference stations.
A method comprising:
- determining a virtual reference station constellation (VRSC) of virtual reference stations having respective locations spanning a geographical area;
- accessing aggregated differential correction information from a database;
- generating, from the aggregated differential correction information, for a Global Navigation Satellite System (GNSS) a differential correction map (DCM) based on the VRSC, the DCM representing a non-planar surface of differential corrections that varies across a geographical area represented by the DCM;
- and
- transmitting a radio signal that conveys the DCM across the geographical area.
2 more elements
An apparatus comprising:
- memory;
- and
- a processor coupled to the memory and configured to:
- access aggregated differential correction information from a database;
- and
- generate, from the aggregated differential correction information, for a Global Navigation Satellite System (GNSS) a differential correction map (DCM) representing a non-planar surface of differential corrections that varies across a geographical area represented by the DCM, the differential corrections being based on a reference station constellation of GNSS reference stations having respective locations spanning the geographical area, the GNSS reference stations including physical or virtual reference stations.
3 more elements
Dependencies are inferred from the claim text.