Anders Helmersson
Adjunct Professor
Publication list
Journal papers
Anders Helmersson, 
Employing Kronecker Canonical Form for LMI-Based H-infinity Synthesis Problems, IEEE Transactions on Automatic Control 57:2062-2067 (2012) 
https://doi.org/10.1109/TAC.2011.2179846
Daniel Ankelhed, Anders Helmersson, Anders Hansson, A Partially Augmented Lagrangian Method for Low Order H-Infinity Controller Synthesis Using Rational Constraints, IEEE Transactions on Automatic Control 57:2901-2905 (2012) https://doi.org/10.1109/TAC.2012.2191333
Daniel Ankelhed, Anders Helmersson, Anders Hansson, A Quasi-Newton Interior Point Method for Low Order H-Infinity Controller Synthesis, IEEE Transactions on Automatic Control 56:1462-1467 (2011) https://doi.org/10.1109/TAC.2011.2118930
Anders Helmersson, LTV Model Reduction With Upper Error Bounds, IEEE Transactions on Automatic Control 54:1450-1462 (2009) https://doi.org/10.1109/TAC.2009.2022091
Tomas McKelvey, Anders Helmersson, T. Ribarits, Data Driven Local Coordinates for Multivariable Linear Systems and their Application to System Identification, Automatica 40:1629-1635 (2004) https://doi.org/10.1016/j.automatica.2004.04.015
Torkel Glad, Anders Helmersson, Lennart Ljung, Robustness Guarantees for Linear Control Designs with an Estimated Nonlinear Model Error Model, International Journal of Robust and Nonlinear Control 14:959-970 (2004) https://doi.org/10.1002/rnc.926
Anders Helmersson, µ Synthesis and LFT Gain Scheduling with Real Uncertainties, International Journal of Robust and Nonlinear Control 8:631-642 (1998) https://doi.org/10.1002/(SICI)1099-1239(199806)8:7<631::AID-RNC335>3.0.CO;2-D
Conference papers
Ke Wang Helmersson, Pål Frenger, Anders Helmersson, Robust precoding weights for downlink D-MIMO in 6G Communications, , IEEE (ed.) (2023)
Anders Helmersson, Ke Wang Helmersson, Pål Frenger, Uplink D-MIMO with Decentralized Subset Combining, ICC 2022 - IEEE International Conference on Communications, IEEE International Conference on Communications, pp. 5134-5139, IEEE (2022) https://doi.org/10.1109/ICC45855.2022.9838868
Ke Wang Helmersson, Pal Frenger, Anders Helmersson, Uplink D-MIMO Processing and Combining Using Kalman Filter, Globecom 2022, IEEE Global Communications Conference, pp. 1703-1708, IEEE (2022) https://doi.org/10.1109/GLOBECOM48099.2022.10001527
Erik Hedberg, Johan Löfberg, Anders Helmersson, A pedagogical path from the internal model principle to Youla-Kucera parametrization, IFAC PAPERSONLINE, pp. 17374-17379, ELSEVIER (2020) https://doi.org/10.1016/j.ifacol.2020.12.2090
Oskar Ljungqvist, Daniel Axehill, Anders Helmersson, Path following control for a reversing general 2-trailer system, 2016 IEEE 55TH CONFERENCE ON DECISION AND CONTROL (CDC), IEEE Conference on Decision and Control, pp. 2455-2461, IEEE (2016) https://doi.org/10.1109/CDC.2016.7798630
Patrik Axelsson, Anders Helmersson, Mikael Norrlöf, H∞-Controller Design Methods Applied to One Joint of a Flexible Industrial Manipulator, Proceedings of the 19th IFAC World Congress, 2014, Boje, Edward and Xia, Xiaohua (eds.), World Congress, pp. 210-216, International Federation of Automatic Control (2014) https://doi.org/10.3182/20140824-6-ZA-1003.00143
Patrik Axelsson, Goele Pipeleers, Anders Helmersson, Mikael Norrlöf, H∞ Synthesis Method for Control of Non-linear Flexible Joint Models, Proceedings of the 19th IFAC World Congress, 2014, Boje, Edward and Xia, Xiaohua (eds.), World Congress, pp. 8372-8377, International Federation of Automatic Control (2014) https://doi.org/10.3182/20140824-6-ZA-1003.00142
Daniel Ankelhed, Anders Helmersson, Anders Hansson, A Primal-Dual Method for Low Order H-Infinity Controller Synthesis, Proceedings of Reglermöte 2010, Lund (2010)
David Törnqvist, Anders Helmersson, Fredrik Gustafsson, Window Based GPS Integrity Test using Tight GPS/IMU Integration Applied to a Sounding Rocket, Proceedings of the 2010 IEEE Aerospace Conference (2010) https://doi.org/10.1109/AERO.2010.5446730
Daniel Ankelhed, Anders Helmersson, Anders Hansson, A Primal-Dual Method for Low Order H-Infinity Controller Synthesis, Proceedings of the 48th IEEE Conference on Decision and Control held jointly with the 28th Chinese Control Conference, I E E E Conference on Decision and Control, Including the Symposium on Adaptive Processes. Proceedings, pp. 6674-6679, IEEE (2009) https://doi.org/10.1109/CDC.2009.5400422
Torkel Glad, Anders Helmersson, Martin Enqvist, Lennart Ljung, Controllers for Amplitude Limited Model Error Models, Proceedings of the 16th IFAC World Congress, IFAC-PapersOnLine, pp. 662-662 (2005) https://doi.org/10.3182/20050703-6-CZ-1902.00663
Anders Hansson, Anders Helmersson, Torkel Glad, Stability Analysis of Nonlinear Systems using Frozen Stationary Linearization, Proceedings of the 2004 American Control Conference, pp. 424-428 (2004)
Lennart Ljung, Anders Helmersson, Torkel Glad, Uncertain LTI-Models for Linear Control Design of Nonlinear Systems, Proceedings of the 40th IEEE Conference on Decision and Control, pp. 2692-2694 vol.3 (2001) https://doi.org/10.1109/.2001.980677
Anders Helmersson, An IQC-Based Stability Criterion for Systems with Slowly Varying Parameters, Proceedings of the 14th IFAC World Congress, pp. 525-530 (1999)
Anders Helmersson, IQC Synthesis based on Inertia Constraints, Proceedings of the 14th IFAC World Congress, pp. 163-168 (1999)
Anders Helmersson, Parameter Dependent Lyapunov Functions Based on Linear Fractional Transformation, Proceedings of the 14th IFAC World Congress, pp. 537-542 (1999)
Anders Helmersson, Tomas McKelvey, A Dynamical Minimal Parametrization of Multivariable Linear Systems and its Application to Optimization and System Identification, Proceedings of the 14th IFAC World Congress, pp. 7-12 (1999)
Anders Helmersson, Tomas McKelvey, Johan Gunnarsson, Matrix Algebra Package for Mathematica, Proceedings of Reglermöte 1998, pp. 84-87 (1998)
Anders Helmersson, Tomas McKelvey, System Identification using an Over-Parametrized Model Class - Improving the Optimization Algorithm, Proceedings of the 36th IEEE Conference on Decision and Control, pp. 2984-2989 vol.3 (1997) https://doi.org/10.1109/CDC.1997.657905
Anders Helmersson, Tomas McKelvey, µ-Synthesis with Matrix Valued Scalings - Algorithms and Examples, Proceedings of the 1997 IEEE American Control Conference, pp. 361-365 (1997)
Anders Helmersson, An Uncertainty Approach to µ Analysis, Proceedings of the 13th IFAC World Congress, pp. 65-70 (1996)
Anders Helmersson, Applications of Real-µ Gain Scheduling, Proceedings of the 35th IEEE Conference on Decision and Control, pp. 1666-1671 vol.2 (1996) https://doi.org/10.1109/CDC.1996.572787
Anders Helmersson, Tomas McKelvey, A Subspace Approach for Approximation of Rational Matrix Functions to Sampled Data, Proceedings of the 35th IEEE Conference on Decision and Control, pp. 3660-3661 vol.4 (1996) https://doi.org/10.1109/CDC.1996.577197
Anders Helmersson, Tomas McKelvey, State-Space Parametrizations of Multivariable Linear Systems using Tridiagonal Matrix Forms, Proceedings of Reglermöte 1996, pp. 244-248 (1996)
Anders Helmersson, Tomas McKelvey, State-Space Parametrizations of Multivariable Linear Systems using Tridiagonal Matrix Forms, Proceedings of the 35th IEEE Conference on Decision and Control, pp. 3654-3659 vol.4 (1996) https://doi.org/10.1109/CDC.1996.577188
Anders Helmersson, A Finite Frequency method for µ-Analysis, Proceedings of the 3rd European Control Conference, pp. 171-176 (1995)
Anders Helmersson, An LFT Parameterization of Lyapunov Functions, Proceedings of the 2nd Russian Swedish Control Conference, pp. 23-27 (1995)
Anders Helmersson, Applications of Mixed µ-Synthesis using the Passivity Approach, Proceedings of the 3rd European Control Conference, pp. 165-170 (1995)
Anders Helmersson, µ Synthesis and LFT Gain Scheduling with Mixed Uncertainties, Proceedings of the 3rd European Control Conference, pp. 153-158 (1995)
Anders Helmersson, A Nonlinear Application of a Lyapunov Technique for Assuring Global Performance Bounds, Proceedings of the 1994 American Control Conference, pp. 954-958 vol.1 (1994) https://doi.org/10.1109/ACC.1994.751885
Anders Helmersson, Model reduction using LMIs, Proceedings of the 33rd IEEE Conference on Decision and Control, pp. 3217-3222 vol.4 (1994) https://doi.org/10.1109/CDC.1994.411635
Reports
Anders Helmersson, Generalized Riccati Equations for Hinfinity Synthesis, LiTH-ISY-R-3085, Linköping University Electronic Press, Linköping (2015)
Patrik Axelsson, Anders Helmersson, Mikael Norrlöf, H∞-Controller Design Methods Applied to One Joint of a Flexible Industrial Manipulator, LiTH-ISY-R-3067, Linköping University Electronic Press, Linköping (2013)
Patrik Axelsson, Goele Pipeleers, Anders Helmersson, Mikael Norrlöf, H∞ Synthesis Method for Control of Non-linear Flexible Joint Models, LiTH-ISY-R-3068, Linköping (2013)
Patrik Axelsson, Anders Helmersson, Mikael Norrlöf, Single Joint Control of a Flexible Industrial Manipulator using H∞ Loop Shaping, LiTH-ISY-R-3053, Linköping University Electronic Press, Linköping (2012)
Anders Helmersson, Employing Kronecker Canonical Form for H-infinity Synthesis Problems, LiTH-ISY-R-3007, Linköping University Electronic Press, Linköping (2011)
Daniel Ankelhed, Anders Helmersson, Anders Hansson, A Partially Augmented Lagrangian Method for Low Order H-Infinity Controller Synthesis Using Rational Constraints, LiTH-ISY-R-3008, Linköping University Electronic Press, Linköping (2011)
Daniel Ankelhed, Anders Helmersson, Anders Hansson, A Primal-Dual Method for Low Order H-Infinity Controller Synthesis, LiTH-ISY-R-2933, Linköping University Electronic Press, Linköping (2010)
Daniel Ankelhed, Anders Helmersson, Anders Hansson, Additional Numerical Results for the Quasi-Newton Interior Point Method for Low Order H-Infinity Controller Synthesis, LiTH-ISY-R-2964, Linköping University Electronic Press, Linköping (2010)
David Törnqvist, Anders Helmersson, Fredrik Gustafsson, Tight Integration Between IMU and GPS for Sounding Rockets, LiTH-ISY-R-2929, Linköping University Electronic Press, Linköping (2010)
Anders Helmersson, On Polynomial Coefficients and Rank Constraints, LiTH-ISY-R-2878, Linköping University Electronic Press, Linköping (2009)
Anders Helmersson, On Polynomial Coefficients and Rank Constraints, LiTH-ISY-R-2867, Linköping University Electronic Press, Linköping (2008)
Torkel Glad, Anders Helmersson, Lennart Ljung, Uncertain LTI-Models for Linear Control Design of Nonlinear Systems, LiTH-ISY-R-2808, Linköping University Electronic Press, Linköping (2007)
Anders Helmersson, LTV Model Reduction with Upper Error Bounds, LiTH-ISY-R-2725, Linköping University Electronic Press, Linköping (2006)
Daniel Ankelhed, Anders Helmersson, Anders Hansson, Suboptimal Model Reduction using LMIs with Convex Constraints, LiTH-ISY-R-2759, Linköping University Electronic Press, Linköping (2006)
Torkel Glad, Anders Helmersson, Martin Enqvist, Lennart Ljung, Controllers for Amplitude Limited Model Error Models, LiTH-ISY-R-2719, Linköping University Electronic Press, Linköping (2005)
Torkel Glad, Anders Helmersson, Lennart Ljung, Robustness Guarantees for Linear Control Designs with an Estimated Nonlinear Model Error Model, LiTH-ISY-R-2592, Linköping University Electronic Press, Linköping (2004)
Anders Helmersson, On Synthesis of Practically Valid Gain-Scheduled Controllers, LiTH-ISY-R-2528, Linköping University Electronic Press, Linköping (2003)
Anders Hansson, Anders Helmersson, Torkel Glad, Stability Analysis of Nonlinear Systems using Frozen Stationary Linearization, LiTH-ISY-R-2512, Linköping University Electronic Press, Linköping (2003)
Jörgen Hansson, Anders Helmersson, Ragnar Wallin, Karin Ståhl-Gunnarsson, Fredrik Karlsson, Anders Hansson, Clearance of Flight Control Laws for Time-Varying Parameters, LiTH-ISY-R-2551, Linköping University Electronic Press, Linköping (2003)
Johan Gunnarsson, Tomas McKelvey, Anders Helmersson, Matrix Algebra Package for Mathematica, LiTH-ISY-R-2133, Linköping University Electronic Press, Linköping (1999)
Tomas McKelvey, Anders Helmersson, System Identification using an Over-Parametrized Model Class - Improving the Optimization Algorithm, LiTH-ISY-R-2136, Linköping University Electronic Press, Linköping (1999)
Tomas McKelvey, Anders Helmersson, µ-Synthesis with Matrix Valued Scalings - Algorithms and Examples, LiTH-ISY-R-2134, Linköping University Electronic Press, Linköping (1999)
Anders Helmersson, IQC Synthesis based on Inertia Constraints, LiTH-ISY-R-1994, Linköping University Electronic Press, Linköping (1998)
Anders Helmersson, An IQC-Based Stability Criterion for Systems with Slowly Varying Parameters, LITH-ISY-R-1979, Linköping University Electronic Press, Linköping (1997)
Tomas McKelvey, Anders Helmersson, A Subspace Approach for Approximation of Rational Matrix Functions to Sampled Data, LiTH-ISY-R-1902, Linköping University Electronic Press, Linköping (1996)
Tomas McKelvey, Anders Helmersson, State-Space Parametrizations of Multivariable Linear Systems using Tridiagonal Matrix Forms, LiTH-ISY-R-1901, Linköping University Electronic Press, Linköping (1996)
Anders Helmersson, An Uncertainty Augmentation Approach to Varying µ Analysis, LiTH-ISY-R-1731, Linköping University, Linköping (1995)
Anders Helmersson, µ Synthesis and LFT Gain Scheduling with Time Varying Mixed Uncertainties, LiTH-ISY-R-1714, Linköping University, Linköping (1995)
Anders Helmersson, A Finite Frequency Method for µ-Analysis, LiTH-ISY-R-1689, Linköping University, Linköping (1994)
Anders Helmersson, A Nonlinear Application of a Lyapunov Technique for Assuring Global Performance Bounds, LiTH-ISY-R-1601, Linköping University, Linköping (1994)
Anders Helmersson, Applications of Mixed µ-Synthesis Using the Passivity Approach, LiTH-ISY-R-1688, Linköping University, Linköping (1994)
Anders Helmersson, Model Reduction using LMIs, LiTH-ISY-R-1579, Linköping University, Linköping (1994)
Anders Helmersson, Model reduction from an H∞/LMI perspective, LITH-ISY-R-1690, Linköping University, Linköping (1994)
Anders Helmersson, State-Space Methods for µ-Analysis, LiTH-ISY-R-1587, Linköping University, Linköping (1994)
Anders Helmersson, µ Synthesis and LFT Gain Scheduling with Mixed Uncertainties, LiTH-ISY-R-1691, Linköping University, Linköping (1994)
PhD theses
Anders Helmersson, Methods for robust gain scheduling, Linköping Studies in Science and Technology. Dissertations 406, Linköping University Electronic Press, Linköping (1995)