Rapidly converging multichannel controllers for broadband noise and vibrations

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    Applications are given of a preconditioned adaptive algorithm for broadband multichannel active noise control. Based on state-space descriptions of the relevant transfer functions, the algorithm uses the inverse of the minimum-phase part of the secondary path in order to improve the speed of convergence. A further improvement of the convergence rate is obtained by using double control filters for elimination of adaptation loop delay. Regularization was found to be essential for robust operation. The particular regularization technique preserves the structure to eliminate the adaptation loop delay. Depending on the application at hand, a number of extensions are used for this algorithm, such as for applications with rapidly changing disturbance spectra, applications with large parametric uncertainty, applications with control of time-varying acoustic energy density.
    Original languageUndefined
    Title of host publicationProceedings of the 39th International Congress on Noise Control Engineering, InterNoise 2010
    Place of PublicationNotre Dame, IN, USA
    Number of pages10
    ISBN (Print)not assigned
    Publication statusPublished - 13 Jun 2010
    Event39th International Congress on Noise Control Engineering, InterNoise 2010 - Lisbon, Portugal
    Duration: 13 Jun 201016 Jun 2010
    Conference number: 39

    Publication series



    Conference39th International Congress on Noise Control Engineering, InterNoise 2010
    Abbreviated titleINTERNOISE 2010


    • METIS-275905
    • Adaptive control
    • EWI-19517
    • IR-75936
    • Active noise and vibration control

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