Satellite positioning reference system and method
US6215441A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1998 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Apr 28, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2205/008
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatuses which use satellite position system (SPS) reference receivers. In one example of the invention, a plurality of SPS reference receivers, such as Global Positioning System (GPS) reference receivers, each having a known position, are dispersed over a geographical region. Each of the SPS reference receivers transmits into a communication network, a representation of at least a portion of a satellite navigation message, such as satellite ephemeris data, received from SPS satellites in view of the particular SPS reference receiver. A plurality of digital processing systems, such as a first and a second digital processing systems, are coupled to the communication network to receive the satellite ephemeris data which is transmitted through the communication network. The first digital processing system receives a first pseudorange data from a first SPS mobile receiver and calculates a first position information of the first SPS mobile receiver from a representation of the first pseudorange data and from satellite ephemeris data received from the communication network. The first digital processing system may also receive pseudorange corrections from the communication …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.