Gimbal System Angle Compensation
AssigneeThe Boeing Company
InventorYong Liu
Life of this patent
Estimating the term…
Abstract
Gimbal system angle compensation methods and systems are provided. A particular method includes pointing an antenna at a first target using an initial set of at least four gimbal angles and determining first bore sight pointing errors resulting from a pointing direction of the antenna relative to the first target. The method also includes estimating values of a plurality of independently observable error variables based on the first bore sight pointing errors. The method further includes determining a set of gimbal angle corrections based on the values of the plurality of independently observable error variables.
Claims20
A method, comprising:
- determining a set of at least four nominal gimbal angles to point an antenna at a target based at least partially on location information associated with the target;
- identifying a set of corrected gimbal angles based on the set of at least four nominal gimbal angles and based on a set of gimbal angle corrections, wherein the set of gimbal angle corrections are determined based at least partially on one or more bore sight measurements of the antenna;
- and
- pointing the antenna using the set of corrected gimbal angles.
A system comprising:
- a host vehicle interface adapted to be coupled to a host vehicle;
- and
- a gimbal system, comprising:
- a first gimbal coupled to the host vehicle interface;
- a platform coupled to the first gimbal;
- a second gimbal coupled to the platform;
- and
- a first directional payload interface coupled to the second gimbal;
- wherein an attitude of a first directional payload coupled to the first directional payload interface is adjustable using the gimbal system based on gimbal angle compensation logic.
A method, comprising:
- pointing an antenna at a first target using an initial set of at least four gimbal angles, wherein coordinates of the first target are known;
- determining first bore sight pointing errors resulting from a pointing direction of the antenna relative to the first target;
- estimating values of a plurality of independently observable error variables based on the first bore sight pointing errors;
- and
- determining, based on the values of the plurality of independently observable error variables, a set of gimbal angle corrections.
Dependencies are inferred from the claim text.