Optimal low-sensitivity linear feedback systems

  title={Optimal low-sensitivity linear feedback systems},
  author={Huibert Kwakernaak},
-The paper considers the stochastic linear regulator and tracking problem for multivariable timeinvariant systems. It is shown that in the limiting case, where the matrix weighting the input in the quadratic criterion is the zero matrix, the closed-loop system is insensitive to parameter variations in the sense of Cruz-Perkins, provided that the system to be controlled is minimum-phase. The weighting matrix in the Cruz-Perkins sensitivity criterion turns out to be the inverse of the covariance… CONTINUE READING
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