Solution of the optimal constant output feedback problem by conjugate gradients
H.P. Horisberger, Pierre R. Belanger · IEEE Transactions on Automatic Control · 1974
The problem of finding the optimal, constant output feedback matrix for linear time-invariant multivariable systems with quadratic cost is reconsidered. Simple formulae for the gradient matrix are developed and used in a Fletcher-Powell-Davidon algorithm. Computational results are presented.