Fusion Kalman/UFIR Filter for State Estimation With Uncertain Parameters and Noise Statistics

Shunyi Zhao, Yuriy S. Shmaliy, Peng Shi, Choon Ki Ahn

    Research output: Contribution to journalArticlepeer-review

    91 Citations (Scopus)

    Abstract

    In this paper, we fuse the Kalman filter (KF) that is optimal but not robust with the unbiased finite-impulse response (UFIR) filter which is more robust than KF but not optimal. The fusion filter employs the KF and UFIR filter as subfilters and produces smaller errors under the industrial conditions. In order to provide the best fusion effect, the operation point where UFIR meets Kalman is determined by applying probabilistic weights to each subfilter. Extensive simulations of the three degree of freedom (3-DOF) hover system have shown that the fusion filter output tends to range close to that by the best subfilter. Experimental verification provided for a 1-DOF torsion system has confirmed validity of simulation.

    Original languageEnglish
    Article number7778185
    Pages (from-to)3075-3083
    Number of pages9
    JournalIEEE Transactions on Industrial Electronics
    Volume64
    Issue number4
    DOIs
    Publication statusPublished - 2017 Apr

    Bibliographical note

    Funding Information:
    This work was supported in part by the National Natural Science Foundation of China (61603155), in part by the 111 Project (B12018), and in part by the National Research Foundation of Korea funded by the Ministry of Science, ICT & Future Planning (NRF-2014R1A1A1006101).

    Publisher Copyright:
    © 2016 IEEE.

    Keywords

    • Fusion filter (FF)
    • Kalman filter (KF)
    • industrial conditions
    • state estimation
    • unbiased finite-impulse response (UFIR) filter

    ASJC Scopus subject areas

    • Control and Systems Engineering
    • Electrical and Electronic Engineering

    Fingerprint

    Dive into the research topics of 'Fusion Kalman/UFIR Filter for State Estimation With Uncertain Parameters and Noise Statistics'. Together they form a unique fingerprint.

    Cite this