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Existence and computation of minimal finite horizon Hnorm
1992 Edition, June 1, 1992 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

In this paper a finite horizon H∞ optimal control problem is treated. Results guaranteeing the existence of a unique optimal control and the worst exogenous input are derived. A criterion for the evaluation of the infimal Hnorm is...

Relating H/sub 2/ and H/sub /spl infin//-norm bounds for sampled-data systems
1997 Edition, Volume 42, June 1, 1997 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We relate the H/sub /spl infin// and H/sub 2/ norms for multi-input/multi-output sampled-data feedback control systems, where a continuous-time plant is controlled by a digital compensator with hold and sampler. Upper bounds on both...

Robust finite-horizon H/sub 2/ control
1995 Edition, January 1, 1995 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The problem of bounded-variance regulation of an uncertain, linear, continuous-time system, with an unknown norm-bounded parameter matrix, is considered. An upper-bound on the expected value of a quadratic performance index is found for all admissible systems, and...

Relating H/sub 2/ and H/sub /spl infin// norm bounds for hybrid systems
1994 Edition, Volume 1, January 1, 1994 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The authors relate the H/sub /spl infin// and H/sub 2/ norms for a type of MIMO hybrid system, which includes sampled-data feedback control systems, where a continuous-time plant is controlled by a digital compensator with hold and sampler....

Synthesis of worst-case optimal controllers over a finite horizon
1991 Edition, January 1, 1991 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Necessary conditions are developed for a finite-horizon version of the H/sub infinity / optimal control problem. Problems involving generalized cost functionals and nonzero initial conditions are considered. A criterion for the evaluation of the...

H/sub /spl infin// optimization with time-domain constraints
1994 Edition, Volume 39, April 1, 1994 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Standard H/sub /spl infin// optimization cannot handle specifications or constraints on the time response of a closed-loop system exactly. In this paper, the problem of H/sub /spl infin// optimization subject to time-domain constraints over a finite...

MIMO H/sub infinity /-control with time domain constraints
1992 Edition, January 1, 1992 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The problem of H/sub infinity / optimization subject to time-domain constraints over a finite horizon is considered. Given gamma >0 and a set of fixed inputs (w/sup i/), it is required to find a controller such that a closed-loop transfer matrix has...

Discrete-time H/sub 2//H/sub infinity / norm-bounding pole placement control and estimation
1992 Edition, January 1, 1992 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

A mixed H/sub 2//H/sub infinity / control problem for discrete-time systems is approached from a covariance assignment viewpoint. A controller which simultaneously meets the following three criteria is proposed: pole placement in a specified disc in the stability region,...

L/sub 1/ and L/sub 2/ normed cepstral distance controlled distortion performance (speech quality)
1991 Edition, January 1, 1991 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The behavior of the CD (cepstral distance) is studied under serveral types of controlled distortion. In addition, CD values are computed from both L/sub 1/ and L/sub 2/ normed LPC (linear predictive coding) models; these results are compared and...

Element-by-element weighted H/sub infinity /-Frobenius and H/sub 2/ norm problems
1991 Edition, January 1, 1991 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Variations of the standard H/sub infinity / and H/sub 2/ control problems are presented. State-space solutions are given for the problems of weighting the individual elements of a closed-loop transfer function while (i) satisfying an...

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