Nonlinear H, Control and Its Application to Rigid Spacecraft

The problem of H, control of a rigid spscecraft with three control teques ad disturbpnees is addressed. The Hamilto~bJacobiilPurs ineq&ty for H, feedback aeS1gn is solved. An H, suboptimpl feedback is given, and the atability propestks of the dosed-loop system are studied.