US 12,338,003 B2
Method, system and apparatus for spacecraft attitude control using B-spline interpolation
Mark Karpenko, Salinas, CA (US); Isaac M. Ross, Monterey, CA (US); Joshua Levitas, Monterey, CA (US); and Roberto Cristi, Pebble Beach, CA (US)
Assigned to The Government of the United States of America, as represented by the Secretary of the Navy, Alington, VA (US)
Filed by THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE NAVY, Arlington, VA (US)
Filed on Apr. 4, 2023, as Appl. No. 18/130,565.
Claims priority of provisional application 63/327,193, filed on Apr. 4, 2022.
Prior Publication US 2023/0312141 A1, Oct. 5, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B64G 1/24 (2006.01); G05D 1/00 (2024.01)
CPC B64G 1/244 (2019.05) [G05D 1/04 (2013.01)] 20 Claims
OG exemplary drawing
 
17. A method for implementing attitude control of a vehicle, comprising:
receiving, at a remote location from the vehicle, data corresponding to at least one time varying attitude command trajectory defining an attitude of the vehicle;
processing, at the remote location, the at least one time-varying attitude command trajectory to generate a down sampled attitude command trajectory including a vector of B-spline polynomial coefficients;
communicating, at the remote location, the down sampled attitude command trajectory to the vehicle; and
modifying, by the vehicle, an attitude of the vehicle based on the down sampled attitude command trajectory and an interpolation filter operatively associated with the vehicle, wherein the interpolation filter is a B-spline interpolation filter applied to a zero order hold (ZOH) function.