Kernel embedding-based state estimation for colored noise systems

Kyuman Lee, Youngjun Choi, Eric N. Johnson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

A required assumption of a Kalman filter, the most-widely-used state estimator in avionic systems, is the Gaussian and whiteness of process and measurement noise. If the assumption fails, the performance of the Kalman filter degrades, and its estimation results are no longer optimal. In fact, many avionic applications produce colored noise, and the parameters of colored noise models are typically unknown beforehand without additional information about the noise statistics. In addition, the functions of each underlying model - nonlinear dynamic and measurement models - are sometimes improper or partially unknown. To estimate the states of systems with unknown correlations of each instance of noise and uncertain modeling errors of parametric models, we propose a novel approach that incorporates the kernel embedding of distributions into the extended Kalman filter. In our approach, kernel embedding maps process and measurement residuals, defined by differences between outputs of approximate system models and collected training data, into a reproducing kernel Hilbert space to generate nonparametric models in the functional space. Results from Monte Carlo simulations demonstrate that the proposed method, compared to existing methods (e.g., extended Kalman filter and Gaussian process-based filter), improves the accuracy of state estimation under colored noise conditions.

Original languageEnglish (US)
Title of host publication2017 IEEE/AIAA 36th Digital Avionics Systems Conference, DASC 2017 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538603659
DOIs
StatePublished - Nov 8 2017
Event36th IEEE/AIAA Digital Avionics Systems Conference, DASC 2017 - St. Petersburg, United States
Duration: Sep 17 2017Sep 21 2017

Publication series

NameAIAA/IEEE Digital Avionics Systems Conference - Proceedings
Volume2017-September
ISSN (Print)2155-7195
ISSN (Electronic)2155-7209

Other

Other36th IEEE/AIAA Digital Avionics Systems Conference, DASC 2017
CountryUnited States
CitySt. Petersburg
Period9/17/179/21/17

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All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Electrical and Electronic Engineering

Cite this

Lee, K., Choi, Y., & Johnson, E. N. (2017). Kernel embedding-based state estimation for colored noise systems. In 2017 IEEE/AIAA 36th Digital Avionics Systems Conference, DASC 2017 - Proceedings [8102036] (AIAA/IEEE Digital Avionics Systems Conference - Proceedings; Vol. 2017-September). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/DASC.2017.8102036