Velocity-free adaptive backstepping control of underactuated spacecraft hovering in circular orbits with input saturation - Huang, Xu; Yan, Ye; Zhou, Yang; Hao, Daoliang (Acta astronautica, 2017)
Keywords: Adaptive control; Backstepping; Circular orbits; Computer simulation; Control; Design parameters; Disturbances; Estimation errors; Feedback control; Feedback control systems; Hovering; Numerical simulations; Output feedback; Saturation; Spacecraft; Spacecraft hovering; Thrust; Underactuated control; Velocity; Velocity estimation; Backstepping; Underactuated control; Spacecraft hovering; Adaptive control; Output feedback