Gbias for rate based autopilot
US10480904B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2017 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Aug 17, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/11
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device, system, and method for shaping the trajectory of a projectile employing a Gravity bias, Gbias. The system includes a seeker, a guidance filter, a pitch rate filter, an actuator, pitch/yaw/roll coupled aerodynamics, and lateral rate sensors. It receives roll orientation input to a guidance and control autopilot; it applies Additional Gbias to that produced by the null rate command to the lateral control loops of the guidance and control autopilot device. The lateral rate command is equal to the desired Additional Gbias divided by an estimate of the projectile velocity. The Additional Gbias is translated to a rate command and incorporated into guidance loop commands to boost an Inherent Gbias to shape the trajectory of the projectile to the target.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.