Search Results for author: Amritam Das

Found 7 papers, 1 papers with code

On the reduction of Linear Parameter-Varying State-Space models

no code implementations2 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.

Benchmarking Dimensionality Reduction +1

Learning flow functions of spiking systems

no code implementations19 Dec 2023 Miguel Aguiar, Amritam Das, Karl H. Johansson

We propose a framework for surrogate modelling of spiking systems.

Electrical Fault Localisation Over a Distributed Parameter Transmission Line

no code implementations20 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.

Universal approximation of flows of control systems by recurrent neural networks

no code implementations1 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.

Learning Flow Functions from Data with Applications to Nonlinear Oscillators

no code implementations29 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.

Learning-based Design of Luenberger Observers for Autonomous Nonlinear Systems

1 code implementation4 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.

Oscillations in Mixed-Feedback Systems

no code implementations30 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.

Cannot find the paper you are looking for? You can Submit a new open access paper.