User`s guide

place
11-171
Algorithm place uses the algorithm of [1] which, for multi-input systems, optimizes the
choice of eigenvectors for a robust solution. We recommend
place rather than
acker even for single-input systems.
In high-order problems, some choices of pole locations result in very large
gains. The sensitivity problems attached with large gains suggest caution in
theuse ofpole placementt echniques.See[2] for resultsfromnumerical testing.
See Also acker Pole placement u sing Ackermann’s formula
lqr State-feedback LQ regulator design
rlocus, rlocfind Root locus design
References [1] Kautsky, J. and N.K. Nichols, “R obust Pole Assignment in Linear State
Feedback,” Int. J. Control, 41 (1985), pp. 1129–1155.
[2] Laub, A.J. and M. Wette, Algorithms andS oftware for Pole Assignment and
Observers, UCRL-15646 Rev. 1, EE Dept., Univ. of Calif., Santa Bar bara, CA,
Sept. 1984.