Method and apparatus for improving the accuracy of relative position estimates in a satellite-based navigation system
US6049304A · kind A · utility
53Cited by
3References
52Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 10, 1997 |
| Grant date | Apr 11, 2000 |
| Priority date | — |
| Expiry date | Jul 10, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2205/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The accuracy of relative position estimates between two vehicles, generated using a satellite-based navigation system, is improved by eliminating at an early stage in the calculation process, errors affecting simultaneously both receivers. The standard absolute navigation equations are modified to solve directly for relative position, while avoiding a final step differentiation, thereby providing increased precision.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.