Analytic Minimum Mean-Square Error Bounds in Linear Dynamic Systems With Gaussian Mixture Noise Statistics

For linear dynamic systems with Gaussian noise, the Kalman filter provides the Minimum Mean-Square Error (MMSE) state estimation by tracking the posterior. Similarly, for systems with Gaussian Mixture (GM) noise distributions, a bank of Kalman filters or the Gaussian Sum Filter (GSF), can provide th...

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Main Authors: Leila Pishdad, Fabrice Labeau
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9058631/
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author Leila Pishdad
Fabrice Labeau
author_facet Leila Pishdad
Fabrice Labeau
author_sort Leila Pishdad
collection DOAJ
description For linear dynamic systems with Gaussian noise, the Kalman filter provides the Minimum Mean-Square Error (MMSE) state estimation by tracking the posterior. Similarly, for systems with Gaussian Mixture (GM) noise distributions, a bank of Kalman filters or the Gaussian Sum Filter (GSF), can provide the MMSE state estimation. However, the MMSE itself is not analytically tractable. Moreover, the general analytic bounds proposed in the literature are not tractable for GM noise statistics. Hence, in this work, we evaluate the MMSE of linear dynamic systems with GM noise statistics and propose its analytic lower and upper bounds. We provide two analytic upper bounds which are the Mean-Square Errors (MSE) of implementable filters, and we show that based on the shape of the GM noise distributions, the tighter upper bound can be selected. We also show that for highly multimodal GM noise distributions, the bounds and the MMSE converge. Simulation results support the validity of the proposed bounds and their behavior in limits.
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spelling doaj.art-aad3ce78b03a41bab33eabc8c0bcac792022-12-21T20:29:55ZengIEEEIEEE Access2169-35362020-01-018679906799910.1109/ACCESS.2020.29864209058631Analytic Minimum Mean-Square Error Bounds in Linear Dynamic Systems With Gaussian Mixture Noise StatisticsLeila Pishdad0https://orcid.org/0000-0001-7825-5757Fabrice Labeau1https://orcid.org/0000-0001-5814-9156Department of Electrical and Computer Engineering, McGill University, Montreal, QC, CanadaDepartment of Electrical and Computer Engineering, McGill University, Montreal, QC, CanadaFor linear dynamic systems with Gaussian noise, the Kalman filter provides the Minimum Mean-Square Error (MMSE) state estimation by tracking the posterior. Similarly, for systems with Gaussian Mixture (GM) noise distributions, a bank of Kalman filters or the Gaussian Sum Filter (GSF), can provide the MMSE state estimation. However, the MMSE itself is not analytically tractable. Moreover, the general analytic bounds proposed in the literature are not tractable for GM noise statistics. Hence, in this work, we evaluate the MMSE of linear dynamic systems with GM noise statistics and propose its analytic lower and upper bounds. We provide two analytic upper bounds which are the Mean-Square Errors (MSE) of implementable filters, and we show that based on the shape of the GM noise distributions, the tighter upper bound can be selected. We also show that for highly multimodal GM noise distributions, the bounds and the MMSE converge. Simulation results support the validity of the proposed bounds and their behavior in limits.https://ieeexplore.ieee.org/document/9058631/Analytic bounds on minimum mean-square errorGaussian mixture noiseonline Bayesian filteringGaussian sum filterminimum mean-square error estimator
spellingShingle Leila Pishdad
Fabrice Labeau
Analytic Minimum Mean-Square Error Bounds in Linear Dynamic Systems With Gaussian Mixture Noise Statistics
IEEE Access
Analytic bounds on minimum mean-square error
Gaussian mixture noise
online Bayesian filtering
Gaussian sum filter
minimum mean-square error estimator
title Analytic Minimum Mean-Square Error Bounds in Linear Dynamic Systems With Gaussian Mixture Noise Statistics
title_full Analytic Minimum Mean-Square Error Bounds in Linear Dynamic Systems With Gaussian Mixture Noise Statistics
title_fullStr Analytic Minimum Mean-Square Error Bounds in Linear Dynamic Systems With Gaussian Mixture Noise Statistics
title_full_unstemmed Analytic Minimum Mean-Square Error Bounds in Linear Dynamic Systems With Gaussian Mixture Noise Statistics
title_short Analytic Minimum Mean-Square Error Bounds in Linear Dynamic Systems With Gaussian Mixture Noise Statistics
title_sort analytic minimum mean square error bounds in linear dynamic systems with gaussian mixture noise statistics
topic Analytic bounds on minimum mean-square error
Gaussian mixture noise
online Bayesian filtering
Gaussian sum filter
minimum mean-square error estimator
url https://ieeexplore.ieee.org/document/9058631/
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AT fabricelabeau analyticminimummeansquareerrorboundsinlineardynamicsystemswithgaussianmixturenoisestatistics