Robust control for microgravity vibration isolation with parametric uncertainty

Many space-science experiments need an active isolation system to provide a sufficiently quiescent microgravity environment. Modern control methods provide the potential for both high-performance and robust stability in the presence of parametric uncertainties that are characteristic of microgravity vibration isolation systems. This paper compares microgravity vibration isolation control system designs using H₂ and H_∞ methods on the basis of nominal performance and robustness to parametric uncertainties.