Results 91 to 100 of about 1,082,543 (312)

Koopman Explicit Model Following Control Framework for a Robotic Manipulator

IEEE Access
Robotic manipulators have nonlinear and coupled dynamics, and this situation makes accurate modeling and control difficult under parameter uncertainties and external effects.
Oguz Kaan Hancioglu, Mehmet Onder Efe
doaj   +1 more source

Learning Koopman Operators with Control Using Bi-level Optimization [PDF]

, 2023
Abhinav Pandey, Daning Huang, Yu Yin, Junyi Geng   +3 more
openalex   +1 more source

Data-Driven Approximation of Transfer Operators: Naturally Structured Dynamic Mode Decomposition

, 2017
In this paper, we provide a new algorithm for the finite dimensional approximation of the linear transfer Koopman and Perron-Frobenius operator from time series data.
froyland, klus, lasota, mezi?, surana
core   +1 more source

Data assimilation with extremum Monte Carlo methods

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study presents the extremum Monte Carlo filter as a data assimilation method and, in particular, a variant of the variational approach (three‐ and four‐dimensional variational), where the state estimates are obtained by solving an optimization problem numerically over a space of prediction functions, instead of the state space itself.
Karim Moussa, Siem Jan Koopman
wiley   +1 more source

Functional dimensionality of Koopman eigenfunction space

Results in Applied Mathematics
This work presents the general form solution of Koopman Partial Differential Equation for an autonomous system of N ordinary differential equations. We identify a domain in RN for which any number in the complex plane is an eigenvalue of the Koopman ...
Ido Cohen, Eli Appleboim, Gershon Wolansky   +2 more
doaj   +1 more source

Data‐driven sensor fault detection and isolation of nonlinear systems: Deep neural‐network Koopman operator

IET Control Theory & Applications, 2023
This paper proposes a data‐driven sensor fault detection and isolation approach for the general class of nonlinear systems. The proposed method uses deep neural network architecture to obtain an invariant set of basis functions for the Koopman operator ...
Mohammadhosein Bakhtiaridoust, Fatemeh Negar Irani, Meysam Yadegar, Nader Meskin   +3 more
doaj   +1 more source

Robust Control Design and Analysis Based on Lifting Linearization of Nonlinear Systems Under Uncertain Initial Conditions

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper presents a robust control synthesis and analysis framework for nonlinear systems with uncertain initial conditions. First, a deep learning‐based lifting approach is proposed to approximate nonlinear dynamical systems with linear parameter‐varying (LPV) state‐space models in higher‐dimensional spaces while simultaneously ...
Sourav Sinha, Mazen Farhood
wiley   +1 more source

Data-Driven Encoding: A New Numerical Method for Computation of the Koopman Operator [PDF]

, 2023
Jerry Ng, Haruhiko Asada
openalex   +1 more source

Why Autonomous Vehicles Are Not Ready Yet: A Multi‐Disciplinary Review of Problems, Attempted Solutions, and Future Directions

Journal of Field Robotics, EarlyView.
ABSTRACT Personal autonomous vehicles can sense their surrounding environment, plan their route, and drive with little or no involvement of human drivers. Despite the latest technological advancements and the hopeful announcements made by leading entrepreneurs, to date no personal vehicle is approved for road circulation in a “fully” or “semi ...
Xingshuai Dong, Massimiliano Cappuccio, Fady Alnajjar, Luqman Ali, Hamad Al Jassmi, Essam Debie, Milad Ghasrikhouzani, Alessandro Lanteri, Tate McGregor, Oleksandra Molloy, Alice Plebe, Michael Regan, Eduardo Sandoval, Dongmo Zhang   +13 more
wiley   +1 more source

Revealing the Energy Level and Charge Dynamics Interplay in Mixed Pb‐Sn Perovskite Solar Cells with Novel Phenoxazine and Phenothiazine Self‐Assembled Monolayers

Solar RRL, EarlyView.
Carbazole‐based self‐assembled monolayers (SAMs) have proven effective as HTLs in perovskite solar cells (PSCs). However, the energy alignment with narrow‐bandgap lead‐tin (Pb‐Sn) perovskites is suboptimal. Here, we design four phenoxazine/phenothiazine SAMs.
Daniele T. Cuzzupè, Marius Franckevičius, Orestis Karalis, Yekitwork Abebe Temitmie, Mantas Marčinskas, Maria Azhar, Neethinathan Johnee Britto, Timo Eberle, Denis Andrienko, Vytautas Getautis, Tadas Malinauskas, Hannes Hempel, Lukas Schmidt‐Mende   +12 more
wiley   +1 more source