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

L. Cedeño, Angel ; González, Rodrigo A. ; Godoy, Boris LU ; Carvajal, Rodrigo and Agüero, Juan C. (2023) In Mathematics
Abstract
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 control systems, communications, and power systems. There are a number of methods and algorithms to deal with this state estimation problem. However, there is no consensus in the control and estimation community on (1) which methods are more suitable for a particular application and why, and (2) how these methods compare in terms of accuracy, computational cost, and user friendliness. In this paper, we provide a comprehensive overview of the state-of-the-art algorithms to deal with state estimation subject to quantized measurements, and an exhaustive... (More)
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 control systems, communications, and power systems. There are a number of methods and algorithms to deal with this state estimation problem. However, there is no consensus in the control and estimation community on (1) which methods are more suitable for a particular application and why, and (2) how these methods compare in terms of accuracy, computational cost, and user friendliness. In this paper, we provide a comprehensive overview of the state-of-the-art algorithms to deal with state estimation subject to quantized measurements, and an exhaustive comparison among them. The comparison analysis is performed in terms of the accuracy of the state estimation, dimensionality issues, hyperparameter selection, user friendliness, and computational cost. We consider classical approaches and a new development in the literature to obtain the filtering and smoothing distributions of the state conditioned to quantized data. The classical approaches include the extended Kalman filter/smoother, the quantized Kalman filter/smoother, the unscented Kalman filter/smoother, and the sequential Monte Carlo sampling method, also called particle filter/smoother, with its most relevant variants. We also consider a new approach based on the Gaussian sum filter/smoother. Extensive numerical simulations—including a practical application—are presented in order to analyze the accuracy of the state estimation and the computational cost. (Less)
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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Mathematics
article number
1327
pages
25 pages
publisher
MDPI AG
external identifiers
  • scopus:85151541480
ISSN
2227-7390
DOI
10.3390/math11061327
project
Autonomous Radiation Mapping and Isotope Composition Identification by Mobile Gamma Spectroscopy
language
English
LU publication?
yes
id
71f35679-33b3-4bb3-836e-a85485693432
date added to LUP
2023-03-17 02:32:26
date last changed
2023-05-24 11:29:58
@article{71f35679-33b3-4bb3-836e-a85485693432,
  abstract     = {{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 control systems, communications, and power systems. There are a number of methods and algorithms to deal with this state estimation problem. However, there is no consensus in the control and estimation community on (1) which methods are more suitable for a particular application and why, and (2) how these methods compare in terms of accuracy, computational cost, and user friendliness. In this paper, we provide a comprehensive overview of the state-of-the-art algorithms to deal with state estimation subject to quantized measurements, and an exhaustive comparison among them. The comparison analysis is performed in terms of the accuracy of the state estimation, dimensionality issues, hyperparameter selection, user friendliness, and computational cost. We consider classical approaches and a new development in the literature to obtain the filtering and smoothing distributions of the state conditioned to quantized data. The classical approaches include the extended Kalman filter/smoother, the quantized Kalman filter/smoother, the unscented Kalman filter/smoother, and the sequential Monte Carlo sampling method, also called particle filter/smoother, with its most relevant variants. We also consider a new approach based on the Gaussian sum filter/smoother. Extensive numerical simulations—including a practical application—are presented in order to analyze the accuracy of the state estimation and the computational cost.}},
  author       = {{L. Cedeño, Angel and González, Rodrigo A. and Godoy, Boris and Carvajal, Rodrigo and Agüero, Juan C.}},
  issn         = {{2227-7390}},
  language     = {{eng}},
  publisher    = {{MDPI AG}},
  series       = {{Mathematics}},
  title        = {{On Filtering and Smoothing Algorithms for Linear State-Space Models Having Quantized Output Data}},
  url          = {{http://dx.doi.org/10.3390/math11061327}},
  doi          = {{10.3390/math11061327}},
  year         = {{2023}},
}