Refinement of spacecraft angular velocity and attitude estimates using star data
US7062363B2 · kind B2 · utility
3Cited by
18References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2004 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Nov 30, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S3/7867
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for refining a spacecraft state estimate, such as an attitude estimate or an angular velocity estimate, is disclosed. The method computes a plurality equations using residuals describing the difference between observed star positions and predicted positions based on inertial measurements, and solves those equations to generate refined estimates of the spacecraft state estimates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.