Redundant system for the indication of heading and attitude in an aircraft
US6955082B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2004 |
| Grant date | Oct 18, 2005 |
| Priority date | — |
| Expiry date | Jul 31, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for synthetically calculating redundant attitude and redundant heading for an aircraft using data existing in the aircraft, including angular rates p, q, r around x-, y- and z-coordinates of an aircraft-fixed (body frame) coordinate system, air data information including speed, altitude and angle of attack, includes the steps of calculating attitude and heading based on the body-frame angular rates p, q, r, estimating errors in measured body-frame magnetic field vector components, deriving a measured body-frame field magnetic field vector, estimating errors in calculated attitude and heading using the air data and the derived measured body-frame magnetic field vector components, and correcting the calculated attitude and heading using the estimated errors in attitude and heading.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.