no code implementations • 2 Apr 2024 • E. Javier Olucha, Bogoljub Terzin, Amritam Das, Roland Tóth
This paper presents an overview and comparative study of the state of the art in State-Order Reduction (SOR) and Scheduling Dimension Reduction (SDR) for Linear Parameter-Varying (LPV) State-Space (SS) models, comparing and benchmarking their capabilities, limitations and performance.
no code implementations • 19 Dec 2023 • Miguel Aguiar, Amritam Das, Karl H. Johansson
We propose a framework for surrogate modelling of spiking systems.
no code implementations • 20 Oct 2023 • Daniel Selvaratnam, Amritam Das, Henrik Sandberg
Motivated by the need to localise faults along electrical power lines, this paper adopts a frequency-domain approach to parameter estimation for an infinite-dimensional linear dynamical system with one spatial variable.
no code implementations • 1 Apr 2023 • Miguel Aguiar, Amritam Das, Karl H. Johansson
In this paper, we prove that an architecture based on discrete-time recurrent neural networks universally approximates flows of continuous-time dynamical systems with inputs.
no code implementations • 29 Mar 2023 • Miguel Aguiar, Amritam Das, Karl H. Johansson
We show that the proposed architecture is able to approximate the flow function by exploiting the system's causality and time-invariance.
1 code implementation • 4 Oct 2022 • Muhammad Umar B. Niazi, John Cao, Xudong Sun, Amritam Das, Karl Henrik Johansson
Designing Luenberger observers for nonlinear systems involves the challenging task of transforming the state to an alternate coordinate system, possibly of higher dimensions, where the system is asymptotically stable and linear up to output injection.
no code implementations • 30 Mar 2021 • Amritam Das, Thomas Chaffey, Rodolphe Sepulchre
The calculation of the limit cycle is reformulated as the zero finding of a mixed-monotone relation, that is, of the difference of two maximally monotone relations.