Data assimilation in the geosciences: An overview of methods, issues, and perspectives

A Carrassi, M Bocquet, L Bertino… - Wiley Interdisciplinary …, 2018 - Wiley Online Library
We commonly refer to state estimation theory in geosciences as data assimilation (DA). This
term encompasses the entire sequence of operations that, starting from the observations of a …

Estimating model parameters with ensemble-based data assimilation: A review

JJ Ruiz, M Pulido, T Miyoshi - … of the Meteorological Society of Japan …, 2013 - jstage.jst.go.jp
Weather forecast and earth system models usually have a number of parameters, which are
often optimized manually by trial and error. Several studies have proposed objective …

Combining data assimilation and machine learning to emulate a dynamical model from sparse and noisy observations: A case study with the Lorenz 96 model

J Brajard, A Carrassi, M Bocquet, L Bertino - Journal of computational …, 2020 - Elsevier
A novel method, based on the combination of data assimilation and machine learning is
introduced. The new hybrid approach is designed for a two-fold scope:(i) emulating hidden …

State and parameter joint estimation of linear stochastic systems in presence of faults and non‐Gaussian noises

V Stojanovic, S He, B Zhang - International Journal of Robust …, 2020 - Wiley Online Library
Joint estimation of states and time‐varying parameters of linear stochastic systems is of
practical importance for fault diagnosis and fault tolerant control. The known fact is that …

Robust identification for fault detection in the presence of non-Gaussian noises: application to hydraulic servo drives

V Stojanovic, D Prsic - Nonlinear Dynamics, 2020 - Springer
Intensive research in the field of mathematical modeling of hydraulic servo systems has
shown that their mathematical models have many important details which cannot be …

Joint state and parameter robust estimation of stochastic nonlinear systems

V Stojanovic, N Nedic - International Journal of Robust and …, 2016 - Wiley Online Library
Successful implementation of many control strategies is mainly based on accurate
knowledge of the system and its parameters. Besides the stochastic nature of the systems …

[HTML][HTML] A hierarchical output-only Bayesian approach for online vibration-based crack detection using parametric reduced-order models

KE Tatsis, K Agathos, EN Chatzi… - Mechanical Systems and …, 2022 - Elsevier
This contribution presents a hierarchical Bayesian filter for recursive input, state and
parameter estimation using spatially incomplete and noisy output-only vibration …

Stochastic parameterization identification using ensemble Kalman filtering combined with maximum likelihood methods

M Pulido, P Tandeo, M Bocquet… - Tellus A: Dynamic …, 2018 - Taylor & Francis
For modelling geophysical systems, large-scale processes are described through a set of
coarse-grained dynamical equations while small-scale processes are represented via …

Sequential Bayesian inference for uncertain nonlinear dynamic systems: a tutorial

KE Tatsis, VK Dertimanis, EN Chatzi - arxiv preprint arxiv:2201.08180, 2022 - arxiv.org
In this article, an overview of Bayesian methods for sequential simulation from posterior
distributions of nonlinear and non-Gaussian dynamic systems is presented. The focus is …

Guidance and control for multi-stage rendezvous and docking operations in the presence of uncertainty

CM Jewison - 2017 - dspace.mit.edu
Rendezvous and docking missions have been a mainstay of space exploration from the
Apollo program through present day operations with the International Space Station. There …