Patents by Inventor JOHN BENTON DERRICK, II

JOHN BENTON DERRICK, II has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Satellite attitude control system using eigen vector, non-linear dynamic inversion, and feedforward control
    Patent number: 11279501
    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.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: March 22, 2022
    Assignee: General Atomics
    Inventor: John Benton Derrick, II
  • SATELLITE ATTITUDE CONTROL SYSTEM USING EIGEN VECTOR, NON-LINEAR DYNAMIC INVERSION, AND FEEDFORWARD CONTROL
    Publication number: 20200130869
    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.
    Type: Application
    Filed: October 25, 2018
    Publication date: April 30, 2020
    Inventor: JOHN BENTON DERRICK, II