Attitude determination exploiting geometry constraints
US7292185B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2005 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | Jan 28, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/53
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system for determining at least one attitude angle of a rigid body. The method comprising: receiving a plurality of Global Navigation Satellite System (GNSS) satellite signals with a plurality of antennas; establishing at least one pair of antennas such that each antenna of the plurality of antennas is included in at least one antenna pair; computing single- or double-difference phases corresponding to one or more GNSS satellites for each of the pairs of antennas; and constructing a single Differential Carrier Phase Attitude (DCPA) equation based on known geometry constraints of each of the pairs of antennas. The method also includes determining a solution for the DCPA equation based on a cost function, the solution yielding at least one integer ambiguity value and the at least one attitude angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.