Low cost self aligning strapdown attitude and heading reference system
US4318300A · kind A · utility
22Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 14, 1980 |
| Grant date | Mar 9, 1982 |
| Priority date | — |
| Expiry date | Jan 14, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/188
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus including two two-degree-of-freedom gyroscopes and at least two accelerometers mounted on a turntable on a vehicle. The turntable can be positioned about a vehicle vertical axis in one or the other of two positions 180 degrees apart for alignment. After alignment, the turntable is caged into its zero degree position, and the instruments thereafter operate in a strap-down mode with the yaw, roll and pitch angles of the vehicle computed by computer mechanisms which are sensitive to signals from the gyroscopes and accelerometers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.