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Computing dynamic output feedback la...

Wang, Yusong.

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Computing dynamic output feedback laws with Pieri homotopies on a parallel computer.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Computing dynamic output feedback laws with Pieri homotopies on a parallel computer./
作者:	Wang, Yusong.
面頁冊數:	114 p.
附註:	Chairperson: Jan Verschelde.
Contained By:	Dissertation Abstracts International66-05B.
標題:	Computer Science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3174223
ISBN:	9780542121555

Computing dynamic output feedback laws with Pieri homotopies on a parallel computer.
Wang, Yusong.

Computing dynamic output feedback laws with Pieri homotopies on a parallel computer. - 114 p.

Chairperson: Jan Verschelde.

Thesis (Ph.D.)--University of Illinois at Chicago, 2005.

The output feedback pole placement problem asks to find laws to feed the output of a plant governed by a linear system of differential equations back to the input of the plant, so that the resulting closed-loop system has a desired set of eigenvalues. In 1981, R. W. Brocket and C. I. Byrnes published the theoretical relations between the static output feedback pole placement problem and enumerative geometry problem. In 1996, M. S. Ravi, J. Rosenthal, and X. Wang generalized the theory to solve the dynamic output feedback pole placement problem for general Multi-Input-Multi-Output (MIMO) systems. The output feedback pole placement problem was still stated as an open problem at this time, since there was no algorithm to solve it. In 1998, B. Huber, F. Sottile, and B. Sturmfels proposed "numerical Schubert calculus", which led to an efficient homotopy algorithm to solve the enumerative geometry problem. In this thesis, we present symbolic-numeric algorithms to turn the solutions of the homotopies to the output feedback laws of the pole placement problem.

ISBN: 9780542121555Subjects--Topical Terms:

626642
Computer Science.

Computing dynamic output feedback laws with Pieri homotopies on a parallel computer.
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245 1 0 $a Computing dynamic output feedback laws with Pieri homotopies on a parallel computer.
300 $a 114 p.
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500 $a Source: Dissertation Abstracts International, Volume: 66-05, Section: B, page: 2627.
502 $a Thesis (Ph.D.)--University of Illinois at Chicago, 2005.
520 $a The output feedback pole placement problem asks to find laws to feed the output of a plant governed by a linear system of differential equations back to the input of the plant, so that the resulting closed-loop system has a desired set of eigenvalues. In 1981, R. W. Brocket and C. I. Byrnes published the theoretical relations between the static output feedback pole placement problem and enumerative geometry problem. In 1996, M. S. Ravi, J. Rosenthal, and X. Wang generalized the theory to solve the dynamic output feedback pole placement problem for general Multi-Input-Multi-Output (MIMO) systems. The output feedback pole placement problem was still stated as an open problem at this time, since there was no algorithm to solve it. In 1998, B. Huber, F. Sottile, and B. Sturmfels proposed "numerical Schubert calculus", which led to an efficient homotopy algorithm to solve the enumerative geometry problem. In this thesis, we present symbolic-numeric algorithms to turn the solutions of the homotopies to the output feedback laws of the pole placement problem.
520 $a Despite the wider application range of the dynamic output feedback laws, the realization of the output of the numerical homotopies as a machine to control the plant in the time domain has not been addressed before. Since the numeric calculation of the Smith normal form is essential for minimal realization of the output feedback laws and the inverse of a polynomial matrix, an original algorithm through computing the extended GCD of two polynomials with the root matching method is implemented. To efficiently solve high dimensional problems with a very large number of solutions, a parallel Pieri homotopy algorithm is designed and implemented. We successfully applied our numerical approach for solving the output feedback pole placement problem to several applications from the literature. Both the realization algorithm and parallel Pieri homotopies are implemented in PHCpack (ACM TOMS 795), a publicly available software package for solving polynomial system with homotopy methods.
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