Search for: All records | NSF Public Access

Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

Generalized Necessary and Sufficient Robust Boundedness Results for Feedback Systems

https://doi.org/10.1109/TAC.2022.3222755

Cyrus, Saman; Lessard, Laurent (September 2023, IEEE Transactions on Automatic Control)

Full Text Available
Guaranteed Stability Margins for Decentralized Linear Quadratic Regulators

https://doi.org/10.1109/LCSYS.2023.3280868

Kashyap, Mruganka; Lessard, Laurent (May 2023, IEEE Control Systems Letters)

It is well-known that linear quadratic regulators (LQR) enjoy guaranteed stability margins, whereas linear quadratic Gaussian regulators (LQG) do not. In this letter, we consider systems and compensators defined over directed acyclic graphs. In particular, there are multiple decision-makers, each with access to a different part of the global state. In this setting, the optimal LQR compensator is dynamic, similar to classical LQG. We show that when sub-controller input costs are decoupled (but there is possible coupling between sub-controller state costs), the decentralized LQR compensator enjoys similar guaranteed stability margins to classical LQR. However, these guarantees disappear when cost coupling is introduced.
more » « less
Full Text Available
Optimal Control of Multi-Agent Systems with Processing Delays

https://doi.org/10.1109/TAC.2023.3346934

Kashyap, Mruganka; Lessard, Laurent (January 2023, IEEE Transactions on Automatic Control)

Full Text Available
The Analysis of Optimization Algorithms: A Dissipativity Approach

https://doi.org/10.1109/MCS.2022.3157115

Lessard, Laurent (June 2022, IEEE Control Systems)

Full Text Available
Toward a Scalable Upper Bound for a CVaR-LQ Problem

https://doi.org/10.1109/LCSYS.2021.3086842

Chapman, Margaret P.; Lessard, Laurent (January 2022, IEEE Control Systems Letters)

Full Text Available