Positioning augmentation device, positioning augmentation method, and computer readable medium
US11175411B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2016 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Aug 19, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/44
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A correction generation unit generates an amount of correction for a phase pseudorange between a positioning satellite and each of a plurality of evaluation points, as an amount of evaluation point correction for each of the plurality of evaluation points, based on a carrier phase of a positioning signal observed at each of a plurality of electronic reference points. A reference calculation unit calculates a difference between the phase pseudorange between the positioning satellite and each of the plurality of evaluation points and a geometric distance between the positioning satellite and each of the plurality of evaluation points, as an amount of reference correction for each of the plurality of evaluation points. A ranging error calculation unit removes a bias component due to ambiguity from a difference between the amount of evaluation point correction and the amount of reference correction and thereby calculates a ranging error at each of the plurality of evaluation points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.