Detail publikačního výsledku

Adaptive fading Kalman filter design using the geometric mean of normal probability densities

DOKOUPIL, J.; VÁCLAVEK, P.

Originální název

Adaptive fading Kalman filter design using the geometric mean of normal probability densities

Anglický název

Adaptive fading Kalman filter design using the geometric mean of normal probability densities

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The paper extends the Kalman filter to operate with the potential process model uncertainty by relying on the use of a variable fading factor. A loss functional evaluating the prediction step of the Kalman filter is constructed based on Bayesian decision-making. This evaluation results in coupling two normal probability density functions (pdfs), defining a lower and upper bound for a state uncertainty increase. The coupling policy is identical with the geometric mean of pdfs weighted by adaptively adjusted probabilities. In this respect, the fading factor is optimally determined by being treated as a probability assigned to the more conservative pdf. The proposed schema corrects state filtering in the presence of model uncertainty through controlling the Kalman gain matrix in response to observed performance.

Anglický abstrakt

The paper extends the Kalman filter to operate with the potential process model uncertainty by relying on the use of a variable fading factor. A loss functional evaluating the prediction step of the Kalman filter is constructed based on Bayesian decision-making. This evaluation results in coupling two normal probability density functions (pdfs), defining a lower and upper bound for a state uncertainty increase. The coupling policy is identical with the geometric mean of pdfs weighted by adaptively adjusted probabilities. In this respect, the fading factor is optimally determined by being treated as a probability assigned to the more conservative pdf. The proposed schema corrects state filtering in the presence of model uncertainty through controlling the Kalman gain matrix in response to observed performance.

Klíčová slova

Kalman filter; fading factor; Kullback-Leibler divergence; Normal distribution

Klíčová slova v angličtině

Kalman filter; fading factor; Kullback-Leibler divergence; Normal distribution

Autoři

DOKOUPIL, J.; VÁCLAVEK, P.

Rok RIV

2019

Vydáno

16.08.2018

Nakladatel

IEEE

ISBN

978-1-5386-5428-6

Kniha

2018 Annual American Control Conference

Strany od

5037

Strany do

5042

Strany počet

6

URL

https://ieeexplore.ieee.org/document/8431008

BibTex

@inproceedings{BUT150466,
  author="Jakub {Dokoupil} and Pavel {Václavek}",
  title="Adaptive fading Kalman filter design using the geometric mean of normal probability densities",
  booktitle="2018 Annual American Control Conference",
  year="2018",
  pages="5037--5042",
  publisher="IEEE",
  doi="10.23919/ACC.2018.8431008",
  isbn="978-1-5386-5428-6",
  url="https://ieeexplore.ieee.org/document/8431008"
}