Calculation method for network-specific factors in a network of reference stations for a satellite-based positioning system
US7948433B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2007 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Nov 17, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/073
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A correction calculation method for a satellite based positioning system with a network of receiving units as reference stations comprises a partitioning of the network into groups of reference stations, calculation of group-specific correction factors, amalgamation of the group-specific correction factors and subsequently, derivation of network-specific correction parameters. In this partitioning, the reference stations are represented by nodes in a connected, edge-weighted graph, in the generation of which an edge respectively connecting two nodes is only generated if it satisfies a distance-dependent connectivity condition, whereby the distance between the nodes connected by this edge is input into the weighting function of this edge. From the graph a minimum spanning tree is derived and subsequently partitioned for establishing the groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.