System and method for augmenting DGNSS with internally-generated differential correction
US8174437B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 2009 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | May 22, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/33
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In the invention, a rover receiver first utilizes data from a base Receiver, a DGNSS reference network, or other differential source to compute a differentially corrected location. Then, using this location and data observed only at the rover, the rover computes an internal set of differential corrections that are stored in computer memory, updated as necessary, and applied in future times to correct observations taken by the rover. The possibly mobile rover receiver, therefore, corrects its own observations with differential corrections computed from its own past observations; relying on external differential for the sole purpose of establishing a reference location, and this is unlike prior art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.