Alexander Lanzon

An ℋ∞ model referencing design utilizing a two degree of freedom controller scheme

Publisher: IEEE

Date: 2005

DOI: 10.1109/CDC.2005.1582505

A mixed small gain and passivity theorem in the frequency domain

Publisher: Elsevier BV

Date: 09-2007

DOI: 10.1016/J.SYSCONLE.2007.04.005

A new stability result for the feedback interconnection of negative imaginary systems with a pole at the origin

Publisher: IEEE

Date: 12-2011

DOI: 10.1109/CDC.2011.6160738

On lossless negative imaginary systems

Publisher: Elsevier BV

Date: 06-2012

DOI: 10.1016/J.AUTOMATICA.2012.03.016

Negative Imaginary Lemmas for Descriptor Systems

Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Date: 2016

DOI: 10.1109/TAC.2015.2444233

Enforcing negative imaginary dynamics on mathematical system models

Publisher: Informa UK Limited

Date: 07-2013

DOI: 10.1080/00207179.2013.804951

Safe adaptive controller changes based on reference model adjustments

Publisher: IEEE

Date: 2003

DOI: 10.1109/CDC.2003.1271826

A stability robustness test for systems with linear time-varying uncertainties

Publisher: IEEE

Date: 2005

DOI: 10.1109/CDC.2005.1582729

Spectral Conditions for Negative Imaginary Systems With Applications to Nanopositioning

Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Date: 06-2014

DOI: 10.1109/TMECH.2013.2263292

Generalizing Negative Imaginary Systems Theory to Include Free Body Dynamics: Control of Highly Resonant Structures With Free Body Motion

Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Date: 10-2014

DOI: 10.1109/TAC.2014.2325692

Spectral Conditions for the Negative Imaginary Property of Transfer Function Matrices

Publisher: Elsevier BV

Date: 2011

DOI: 10.3182/20110828-6-IT-1002.00714

H∞ design to generalize internal model control

Publisher: Elsevier BV

Date: 11-2006

DOI: 10.1016/J.AUTOMATICA.2006.06.007

A two-degree-of-freedom ℋ∞ control design method for robust model matching

Publisher: Wiley

Date: 2006

DOI: 10.1002/RNC.1070

An ℋ∞ algorithm for the windsurfer approach to adaptive robust control

Publisher: Wiley

Date: 10-2004

DOI: 10.1002/ACS.823

Computing the positive stabilizing solution to algebraic Riccati equations with an indefinite quadratic term via a recursive method

Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Date: 11-2008

DOI: 10.1109/TAC.2008.2006108

A model reference approach to safe controller changes in iterative identification and control

Publisher: Elsevier BV

Date: 02-2006

DOI: 10.1016/J.AUTOMATICA.2005.08.022

A subspace system identification algorithm guaranteeing the negative imaginary property

Publisher: IEEE

Date: 12-2014

DOI: 10.1109/CDC.2014.7039880

Model approximation using magnitude and phase criteria: Implications for model reduction and system identification

Publisher: Wiley

Date: 12-10-2007

DOI: 10.1002/RNC.1124

Abstract: In this paper, we use convex optimization for model reduction and identification of transfer functions. Two different approximation criteria are studied. When the first criterion is used, magnitude functions are matched, and when the second criterion is used, phase functions are matched. The weighted error bounds have direct interpretation in a Bode diagram, and are suitable to engineers working with frequency‐domain data. We also show that transfer functions that have similar magnitude or phase functions have a small relative H‐infinity error, under certain stability and minimum phase assumptions. The error bounds come from bounds associated with the Hilbert transform operator restricted in its application to rational transfer functions. Furthermore, it is shown how the approximation procedures can be implemented with linear matrix inequalities, and four ex les are included to illustrate the results. Copyright © 2006 John Wiley & Sons, Ltd.

Stability Analysis of Positive Feedback Interconnections of Linear Negative Imaginary Systems

Publisher: IEEE

Date: 2009

DOI: 10.1109/ACC.2009.5160262

Selection of a single uniquely specifiable ℋ∞ controller in the chain-scattering framework

Publisher: Elsevier BV

Date: 06-2004

DOI: 10.1016/J.AUTOMATICA.2004.01.013

Quantitative effects of weight adjustments inℋ∞ control

Publisher: Wiley

Date: 05-2009

DOI: 10.1002/OCA.858

A stability result for interconnections of nonlinear systems with mixed small gain and passivity properties

Publisher: IEEE

Date: 2007

DOI: 10.1109/CDC.2007.4434398

A Negative Imaginary Lemma and the Stability of Interconnections of Linear Negative Imaginary Systems

Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Date: 10-2010

DOI: 10.1109/TAC.2010.2052711

Verifying stabilizing controllers via closed-loop noisy data: MIMO case

Publisher: IEEE

Date: 2007

DOI: 10.1109/CDC.2007.4434568

Stabilization of uncertain negative-imaginary systems using a Riccati equation approach

Publisher: IEEE

Date: 12-2012

DOI: 10.1109/ICIES.2012.6530879

LMI-based gain scheduled controller synthesis for a class of linear parameter varying systems

Publisher: Springer-Verlag

Date: 2006

DOI: 10.1007/11664550_1

Distal aneurysms of the unpaired ACA: embryologic and therapeutic aspects

Publisher: Springer Science and Business Media LLC

Date: 03-2005

DOI: 10.1007/S00234-005-1359-7

Abstract: Anatomical variants of the cerebral arteries in general are frequent and due to the complex ontogenesis of these structures. Although encountered in many mammals, a single anterior cerebral artery (ACA) trunk is an infrequent finding in humans with an incidence of 3-5%. This vessel, giving rise to the arteries of both frontal lobes, is subjected to high flow volumes and distal arterial aneurysms have repetitively been encountered, mostly however before the introduction of endovascular treatment strategies. We report on five patients with acute SAH and arterial aneurysms of an unpaired ACA, who underwent coil embolisation. In all cases endovascular treatment using detachable platinum coils resulted in an at least satisfactory degree of aneurysm obliteration without parent artery occlusion or embolic infarcts. All patients had clinical and angiographic follow-up with median follow-up time of 29 months during which no aneurysm regrowth was encountered. In spite of a small patient group our results suggest, that altered flow dynamics due to enlarged single intracranial vessels may predispose to aneurysm formation and that endovascular embolisation is an appropriate treatment option in distal aneurysms of an unpaired ACA.

Finite Frequency Negative Imaginary Systems

Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Date: 11-2012

DOI: 10.1109/TAC.2012.2193705

Interconnections of nonlinear systems with mixed small gain and passivity properties and associated input-output stability results

Publisher: Elsevier BV

Date: 04-2009

DOI: 10.1016/J.SYSCONLE.2008.11.006

Enforcing a system model to be negative imaginary via perturbation of Hamiltonian matrices

Publisher: IEEE

Date: 12-2011

DOI: 10.1109/CDC.2011.6160286

A test for stability robustness of linear time-varying systems utilizing the linear time-invariant νν-gap; metric

Publisher: Wiley

Date: 06-2009

DOI: 10.1002/RNC.1358

A Newton-Raphson algorithm for calculating the effects of changes in weights on an H∞ design

Publisher: IEEE

Date: 2005

DOI: 10.1109/CDC.2005.1582730

Validating controllers for internal stability utilizing closed-loop data

Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Date: 11-2009

DOI: 10.1109/TAC.2009.2031587

A generalized negative imaginary lemma and Riccati-based static state-feedback negative imaginary synthesis

Publisher: Elsevier BV

Date: 03-2015

DOI: 10.1016/J.SYSCONLE.2015.01.008

University Of Manchester

Location: United Kingdom of Great Britain and Northern Ireland

View Organisation

Discovery Projects - Grant ID: DP190102158

Start Date: 07-2019

End Date: 07-2022

Amount: $430,000.00

Funder: Australian Research Council

Discovery Projects - Grant ID: DP0342683

Start Date: 05-2003

End Date: 05-2006

Amount: $253,035.00

Funder: Australian Research Council

Special Research Initiatives - Grant ID: SR0354553

Start Date: 01-2004

End Date: 12-2003

Amount: $30,000.00

Funder: Australian Research Council