A two-filter approach for state estimation utilizing quantized output data

AL Cedeño, R Albornoz, R Carvajal, BI Godoy… - Sensors, 2021 - mdpi.com
Filtering and smoothing algorithms are key tools to develop decision-making strategies and
parameter identification techniques in different areas of research, such as economics …

Parallel Kalman filter group integrated particle filter method for the train nonlinear operational status high-precision estimation under non-Gaussian environment

T Wen, J Liu, Y Cao, C Roberts - Accident Analysis & Prevention, 2023 - Elsevier
For the problem of multi-mode state estimation in actual train operation, this paper proposes
a nonlinear non-gaussian high-precision parallel Kalman filter group (NN-HEKFG) …

On Filtering and Smoothing Algorithms for Linear State-Space Models Having Quantized Output Data

AL Cedeño, RA González, BI Godoy, R Carvajal… - Mathematics, 2023 - mdpi.com
The problem of state estimation of a linear, dynamical state-space system where the output
is subject to quantization is challenging and important in different areas of research, such as …

Finite Impulse Response Errors-in-Variables System Identification Utilizing Approximated Likelihood and Gaussian Mixture Models

AL Cedeño, R Orellana, R Carvajal, BI Godoy… - IEEE …, 2023 - ieeexplore.ieee.org
In this paper a Maximum likelihood estimation algorithm for Finite Impulse Response Errors-
in-Variables systems is developed. We consider that the noise-free input signal is Gaussian …

Identification of Wiener state–space models utilizing Gaussian sum smoothing

AL Cedeño, RA González, R Carvajal, JC Agüero - Automatica, 2024 - Elsevier
In this paper, we address the problem of system identification for Wiener state–space
models. Our approach is based on the Maximum Likelihood method and the Expectation …

A novel filtering method for hammerstein-wiener state-space systems

AL Cedeño, R Carvajal… - 2021 IEEE CHILEAN …, 2021 - ieeexplore.ieee.org
In this paper, we develop a novel filtering algorithm for Hammerstein-Wiener State-Space
Systems. The likelihood function of the noisy nonlinear output signal given the system state …

An EM Algorithm for Lebesgue-sampled State-space Continuous-time System Identification

RA González, AL Cedeño, M Coronel, JC Agüero… - IFAC-PapersOnLine, 2023 - Elsevier
This paper concerns the identification of continuous-time systems in state-space form that
are subject to Lebesgue sampling. Contrary to equidistant (Riemann) sampling, Lebesgue …

A gaussian sum smoothing algorithm for Hammerstein-Wiener state-space systems

AL Cedeño, R Carvajal… - 2022 IEEE International …, 2022 - ieeexplore.ieee.org
In this paper, we develop a novel Bayesian smoothing method for obtaining the smoothed
probability density functions of Hammerstein-Wiener state-space systems and the …

A Bayesian Filtering Method for Wiener State-Space Systems Utilizing a Piece-wise Linear Approximation

AL Cedeño, R Orellana, R Carvajal, JC Agüero - IFAC-PapersOnLine, 2023 - Elsevier
In this paper, we develop a filtering algorithm for Wiener systems written in state-space form
which considers correlated noise sources. The output non-linearity is approximated by using …

On State Estimation Methods for an Anaerobic Digestion Model for Readily Biodegradable Substrates

M Azúa-Poblete, AL Cedeño… - 2023 IEEE CHILEAN …, 2023 - ieeexplore.ieee.org
This paper focuses on the state estimation of an Anaerobic Digestion (AD) model using two
filtering algorithms: the Extended Kalman Filter (EKF) and the Particle Filter (PF). AD is a …