SGCMG design and time accumulation error analysis

SGCMG receives much concern due to the performance of its excellent torque output on spacecraft control, it has been applied to large foreign spacecraft already, but late start and only limited to configurations and steering law study in China. Based on the needs of agility small satellites, this article explained the method of SGCMG principle prototype design and proposed the influence on SGCMG output torque precision generated by time accumulation error first time. This article provided a new idea for future SGCMG project development and had good reference value for SGCMG research.