Concept
Linear time-invariant system
Related publications (314)
The Sparsity of Cycle Spinning for Wavelet-Based Solutions of Linear Inverse Problems
The usual explanation of the efficacy of wavelet-based methods hinges on the sparsity of many real-world objects in the wavelet domain. Yet, standard wavelet-shrinkage techniques for sparse reconstruction are not competitive in practice, one reason being t ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2023A mathematical theory for mass lumping and its generalization with applications to isogeometric analysis
Annalisa Buffa, Espen Sande, Yannis Dirk Voet
Explicit time integration schemes coupled with Galerkin discretizations of time-dependent partial differential equations require solving a linear system with the mass matrix at each time step. For applications in structural dynamics, the solution of the li ...
2022Robust Resource-Aware Self-Triggered Model Predictive Control
Colin Neil Jones, Yuning Jiang, Yingzhao Lian
The wide adoption of wireless devices in the Internet of Things requires controllers that are able to operate with limited resources, such as battery life. Operating these devices robustly in an uncertain environment, while managing available resources, in ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022Data-Driven Unknown-Input Observers and State Estimation
Giancarlo Ferrari Trecate, Mustafa Sahin Turan
Unknown-input observers (UIOs) allow for estimation of the states of an LTI system without knowledge of all inputs. In this letter, we provide a novel data-driven UIO based on behavioral system theory and the result known as Fundamental Lemma proposed by J ...
2022A convex set of robust D—stabilizing controllers using Cauchy's argument principle
Alireza Karimi, Philippe Louis Schuchert
A new approach is presented to obtain a convex set of robust D—stabilizing fixed structure controllers, relying on Cauchy's argument principle. A convex set of D—stabilizing controllers around an initial D—stabilizing controller for a multi-model set is re ...
Elsevier2022HP - A code for the calculation of Hubbard parameters using density-functional perturbation theory
Nicola Marzari, Iurii Timrov, Matteo Cococcioni
We introduce HP, an implementation of density-functional perturbation theory, designed to compute Hubbard parameters (on-site U and inter-site V ) in the framework of DFT+U and DFT+U+V. The code does not require the use of computationally expensive superce ...
ELSEVIER2022Mesh d-refinement: a data-based computational framework to account for complex material response
Jean-François Molinari, Antonio Joaquin Garcia Suarez, Sacha Zenon Wattel
Model-free data-driven computational mechanics (DDCM) is a new paradigm for simulations in solid mechanics. The modeling step associated to the definition of a material constitutive law is circumvented through the introduction of an abstract phase space in ...
2022Local Nondeterminism and Local Times of the Stochastic Wave Equation Driven by Fractional-Colored Noise
We investigate the existence and regularity of the local times of the solution to a linear system of stochastic wave equations driven by a Gaussian noise that is fractional in time and colored in space. Using Fourier analytic methods, we establish strong l ...
SPRINGER BIRKHAUSER2022Temporal Representation Learning on Monocular Videos for 3D Human Pose Estimation
Pascal Fua, Mathieu Salzmann, Helge Jochen Rhodin, Victor Constantin, Sina Honari
In this paper we propose an unsupervised feature extraction method to capture temporal information on monocular videos, where we detect and encode subject of interest in each frame and leverage contrastive self-supervised (CSS) learning to extract rich lat ...
2022Chance-Constrained Trajectory Planning With Multimodal Environmental Uncertainty
We tackle safe trajectory planning under Gaussian mixture model (GMM) uncertainty. Specifically, we use a GMM to model the multimodal behaviors of obstacles' uncertain states. Then, we develop a mixed-integer conic approximation to the chance-constrained t ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022