@conference {
	title = {Robustness Issues in Boundary Feedback of Flexible Structures},
	author = {Bennett, William H., Kwatny, H G., Baras, John S.},
	year = {1987},
	month = {09/1987},
	abstract = {Transfer function models for basic structural elements with boundary control reveal certain inherent properties relevant to questions of control system realization, design, and analysis of robustness. The transfer functions involved are not strictly proper, may be nonminimum phase (except for the special case of colocated actuation and sensing), and often have large number of poles on the imaginary axis.

In this paper we consider these basic questions in terms of modeling and control system design for robustness. We investigate the application of algebraic methods for computing stabilizing control based on certain exact, irrational transfer functions. We consider boundary control of the wave equation and suggest extension of the method to more general problems. Special attention is given to implementation issues associated with a class of infinite dimensional control laws of the type described by Baras.},
	address = {Minneapolis, Minnesota},
	booktitle = {The 1987 American Control Conference},
	pages = {pp. 1307-1313}
}
@conference {
	title = {A New Geometric Stability Margin for Feedback Systems},
	author = {Bennett, William H., Baras, John S.},
	year = {1985},
	month = {12/1985},
	abstract = {This paper provides a new geometric concept for a stability margin for feedback control systems which is applicable for any number of inputs and outputs. The measure of stability margin employed has the advantage over standard measures of exposing certain additional internal stability properties of a feedback configuration employing dynamic compensation.

The stability margin is based on the essential topological features of an abstract Nyquist criterion proposed by Brockett and Byrnes. This abstract Nyquist criterion for multivariable systems involves the topology of intersections between certain pairs of subspaces of the direct sum of the system inputs and outputs. The measures employed here are derived from the idea of principal angles between a pair of subspaces.},
	address = {Ft. Lauderdale, Florida},
	booktitle = {The 24th IEEE Conference on Decision and Control},
	pages = {pp. 519-526}
}
@conference {
	title = {Decomposition and Decentralized Control System Design: A Review of Frequency Domain Methods},
	author = {Bennett, William H., Baras, John S.},
	year = {1985},
	month = {12/1985},
	abstract = {We provide a short review of the literature on design of decentralized control based on weak coupling measures for transfer function models. The notion of diagonal dominance for transfer functions has been suggested as a measure of weak coupling for system decomposition. Various generalizations of this notion for partitioned transfer function matrices are discussed as they pertain to design of decentralized control.

Such weak coupling techniques permit a decentralized design procedure based on an approximate decoupled model. The accuracy of these decoupled approximations for control design is highlighted.},
	address = {Ft. Lauderdale, Florida},
	booktitle = {The 24th IEEE Conference on Decision and Control},
	pages = {pp. 1828-1835}
}
@conference {
	title = {Decentralized Stabilization of Large Scale Systems by Frequency Domain Methods},
	author = {Bennett, William H., Baras, John S.},
	year = {1983},
	month = {03/1983},
	abstract = {A notion of weak coupling between subsystem~of a large-scale~system is developed based on a sufficient condition for a linear, time-invariant MIMO systems. The weak coupling measure provides a frequency dependent requirement on the system response for stability of a decentralized controller for the system. An abstract notion of a generalized Nyquist criterion for MIMO systems (as discussed in Brockett and byrnes [7]~)~is extended for decentralized feedback control. Computational methods are provided which exploit a connection between a gap-metric and the principal angles between pairs of subspaces. The principal angles are shown to be related to the singular values of an easily conputed matrix.},
	address = {Baltimore, Maryland},
	booktitle = {The 1983 Conference on Information Sciences and Systems},
	pages = {pp. 599-606},
	organization = {Johns Hopkins University}
}
@conference {
	title = {Algorithms and Computational Aspects Pertaining to Block Diagonal Methods for Design of Decentralized Feedback Compensation},
	author = {Bennett, William H., Baras, John S.},
	year = {1982},
	month = {12/1982},
	abstract = {In a previous paper the notion of a block diagonally dominant transfer function matrix is used to provide criteria for the design of decentralized feedback control. In this paper we develop computer implementable algorithms for determining the block diagonal dominance condition. The algorithms are developed with consideration for numerical stability. Implementation of the algorithms in an interactive computing environment is suggested.},
	address = {Orlando, Florida},
	booktitle = {21st IEEE Conference on Decision and Control},
	pages = {pp. 479-484}
}
@conference {
	title = {Block Diagonal Dominance and Design of Decentralized Compensators},
	author = {Bennett, William H., Baras, John S.},
	year = {1980},
	month = {06/1980},
	abstract = {An extension of Rosenbrock{\textquoteright}s design method for linear multivariable~systems is presented, based on the concept of block diagonal dominance for rational~transfer function matrices.~The technique allows independent design of compensators for low-interacting subsystems.~The flexibility of the method with~respect to partitioning and measured of gain leads to improved estimates for overall~system stability under decentralized compensator design.~ Various new directions~and extensions suggested by our methods are discussed and examples illustrate~the theory.},
	address = {Toulouse, France},
	booktitle = {IFAC Symposium on Large Scale Systems: Theory and Applications},
	pages = {pp. 93-102}
}
@conference {
	title = {Block Diagonal Dominance and Design of Decentralized Compensators},
	author = {Bennett, William H., Baras, John S.},
	year = {1979},
	month = {03/1979},
	abstract = {An extension of Rosenbrock{\textquoteright}s design method for linear multivariable systems is presented, based on the concept of block diagonal dominance for rational transfer function matrices. The technique allows independent~design of compensators for low-interacting subsystems. The flexibility of the method with respect to partitioning and measures of gain leads to improved estimates for overall system stability under decentralized compensator~designs. Various new directions and extensions suggested by our methods are discussed and examples illustrate the theory.},
	address = {Baltimore, MD},
	booktitle = {1979 Conference on Information Sciences and Systems},
	pages = {pp. 343-351},
	organization = {Johns Hopkins University}
}
