Invention Grant
- Patent Title: Satellite attitude control system using eigen vector, non-linear dynamic inversion, and feedforward control
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Application No.: US16170157Application Date: 2018-10-25
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Publication No.: US11279501B2Publication Date: 2022-03-22
- Inventor: John Benton Derrick, II
- Applicant: GENERAL ATOMICS
- Applicant Address: US CA San Diego
- Assignee: GENERAL ATOMICS
- Current Assignee: GENERAL ATOMICS
- Current Assignee Address: US CA San Diego
- Agency: Fitch, Even, Tabin & Flannery LLP
- Main IPC: B64G1/28
- IPC: B64G1/28 ; B64G1/24

Abstract:
Systems and methods are described for a satellite control system that exhibits improved stability and increased efficiency by implementing a non-linear dynamic inversion inner-loop control algorithm coupled with an eigen vector outer-loop control algorithm. Thus, the attitude determination and control system (ADACS) may operate using commands to rotate directly about an eigen vector. Additionally, the outer-loop control system includes a feed-forward control element to enhance pointing accuracy when tracking moving targets.
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