Robust control design for a spaceborne telescope guidance system

Robust control approach is applied to a system with a constant dynamics factor and a variable matrix of rigid cross-links R(/spl gamma/): high-precision guidance system for a telescope, mounted at a satellite hull. Region of possible operation regime /spl Gamma/ is dissected into a number of subregions {/spl Gamma//sub n/}, each of those is described by a nominal cross-links matrix R and an unstructured additive uncertainty /spl Delta//sub R/, and a reversed frame normalizing compensator is designed for each subregion /spl Gamma//sub n/ to provide closed-loop specifications (stability, tracking accuracy, peak magnitude).<
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