Nonlinear H/sub /spl infin// control and its application to rigid spacecraft

The problem of H/sub /spl infin// control of a rigid spacecraft with three control torques and disturbances is addressed. The Hamilton-Jacobi-Isaacs inequality for H/sub /spl infin// feedback design is solved. An H/sub /spl infin// suboptimal feedback is given, and the stability properties of the closed-loop system are studied.<
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