On-orbit experiment plan of robust attitude control of ETS-VIII

This paper reports a preliminary study result on on-orbit experiments of robust attitude control of Engineering Test Satellite VIII (ETS-VIII). The key issue is to design a reduced-order Multi-Input Multi-Output (MIMO) robust controller for linear parameter varying (LPV) spacecraft system. For that purpose, we have prepared three control laws after trade-off studies. Herein, we describe the purpose, some features of the spacecraft model, the experiment system, and the experiment plan. Then outlines of control laws are shown, followed by numerical simulation results.