Underactuated spacecraft angular velocity stabilization and three-axis attitude stabilization using two single gimbal control moment gyros

Angular velocity stabilization control and attitude stabilization control for an underactuated spacecraft using only two single gimbal control moment gyros(SGCMGs) as actuators is investigated.First of all,the dynamic model of the underactuated spacecraft is established and the singularity of different configurations with the two SGCMGs is analyzed.Under the assumption that the gimbal axes of the two SGCMGs are installed in any direction,and that the total system angular momentum is not zero,a state feedbac...