no code implementations • 10 Apr 2024 • Omkar Sudhir Patil, Duc M. Le, Emily J. Griffis, Warren E. Dixon
Deep Neural Network (DNN)-based controllers have emerged as a tool to compensate for unstructured uncertainties in nonlinear dynamical systems.
no code implementations • 21 Nov 2023 • Omkar Sudhir Patil, Emily J. Griffis, Wanjiku A. Makumi, Warren E. Dixon
Recent advancements in adaptive control have equipped deep neural network (DNN)-based controllers with Lyapunov-based adaptation laws that work across a range of DNN architectures to uniquely enable online learning.
no code implementations • 30 Oct 2023 • Saiedeh Akbari, Emily J. Griffis, Omkar Sudhir Patil, Warren E. Dixon
Simulation results of the developed dropout DNN-based adaptive controller indicate a 38. 32% improvement in the tracking error, a 53. 67% improvement in the function approximation error, and 50. 44% lower control effort when compared to a baseline adaptive DNN-based controller without dropout regularization.
no code implementations • 3 Feb 2022 • Federico M. Zegers, Runhan Sun, Girish Chowdhary, Warren E. Dixon
Distributed state estimation is examined for a sensor network tasked with reconstructing a system's state through the use of a distributed and event-triggered observer.
no code implementations • 6 Apr 2021 • Aris Kanellopoulos, Filippos Fotiadis, Chuangchuang Sun, Zhe Xu, Kyriakos G. Vamvoudakis, Ufuk Topcu, Warren E. Dixon
In this paper, we develop safe reinforcement-learning-based controllers for systems tasked with accomplishing complex missions that can be expressed as linear temporal logic specifications, similar to those required by search-and-rescue missions.
no code implementations • 9 Feb 2015 • Rushikesh Kamalapurkar, Joel A. Rosenfeld, Warren E. Dixon
In this paper the infinite horizon optimal regulation problem is solved online for a deterministic control-affine nonlinear dynamical system using the state following (StaF) kernel method to approximate the value function.
Model-based Reinforcement Learning reinforcement-learning +1