TY - CHAP ID - eprints2447 EP - 5245 SP - 5240 TI - Robust pole placement for plants with semialgebraic parametric uncertainty N2 - In this paper we address the problem of robust pole placement for linear-time-invariant systems whose uncertain parameters are assumed to belong to a semialgebraic region. A dynamic controller is designed in order to constrain the coefficients of the closed-loop characteristic polynomial within prescribed intervals. Two main topics arising from the problem of robust pole placement are tackled by means of polynomial optimization. First, necessary conditions on the plant parameters for the existence of a robust controller are given. Then, the set of all admissible robust controllers is sought. Convex relaxation techniques based on sum-of-square decomposition of positive polynomials are used to efficiently solve the formulated optimization problems through semidefinite programming techniques. AV - public N1 - 2012 American Control Conference; held in Montréal Canada), June 27-June 29, 2012 SN - 978-1-4577-1095-7 T2 - Proceedings of American Control Conference (ACC), 2012 KW - Robust coprimeness; Robust pole placement; Semialgebraic uncertainty; Sum-of-square decomposition A1 - Cerone, Vito A1 - Piga, Dario A1 - Regruto, Diego UR - http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6315548&isnumber=6314593 Y1 - 2012/06// PB - IEEE ER -