Performance of an active control system near a reflecting surface

Jie Pan, X. Qiu

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    This paper deals with the evaluation of power radiated by two monopoles locatednear a refl ective surface, especially in the case when one monopole-strength is actively controlled forthe minimisation of total radiated power. The radiated power and the optimal input for the controlledmonopole are derived analytically. It is found that the power output of an active noise controlsystem consisting of two point sources and located near a refl ective surface is dependent upon thesystem orientation angle. Based on the mechanism that the refl ecting surface can convert a dipolevertical to the surface into a longitudinal quadrupole, we demonstrate that the introduction of arigid surface to the active noise control system could further enhance the total power reduction.
    Original languageEnglish
    Pages (from-to)1-8
    JournalAustralian Journal of Mechanical Engineering
    Volume5
    Issue number1
    Publication statusPublished - 2008

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    Control systems
    Active noise control

    Cite this

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    title = "Performance of an active control system near a reflecting surface",
    abstract = "This paper deals with the evaluation of power radiated by two monopoles locatednear a refl ective surface, especially in the case when one monopole-strength is actively controlled forthe minimisation of total radiated power. The radiated power and the optimal input for the controlledmonopole are derived analytically. It is found that the power output of an active noise controlsystem consisting of two point sources and located near a refl ective surface is dependent upon thesystem orientation angle. Based on the mechanism that the refl ecting surface can convert a dipolevertical to the surface into a longitudinal quadrupole, we demonstrate that the introduction of arigid surface to the active noise control system could further enhance the total power reduction.",
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    Performance of an active control system near a reflecting surface. / Pan, Jie; Qiu, X.

    In: Australian Journal of Mechanical Engineering, Vol. 5, No. 1, 2008, p. 1-8.

    Research output: Contribution to journalArticle

    TY - JOUR

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    AU - Pan, Jie

    AU - Qiu, X.

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    N2 - This paper deals with the evaluation of power radiated by two monopoles locatednear a refl ective surface, especially in the case when one monopole-strength is actively controlled forthe minimisation of total radiated power. The radiated power and the optimal input for the controlledmonopole are derived analytically. It is found that the power output of an active noise controlsystem consisting of two point sources and located near a refl ective surface is dependent upon thesystem orientation angle. Based on the mechanism that the refl ecting surface can convert a dipolevertical to the surface into a longitudinal quadrupole, we demonstrate that the introduction of arigid surface to the active noise control system could further enhance the total power reduction.

    AB - This paper deals with the evaluation of power radiated by two monopoles locatednear a refl ective surface, especially in the case when one monopole-strength is actively controlled forthe minimisation of total radiated power. The radiated power and the optimal input for the controlledmonopole are derived analytically. It is found that the power output of an active noise controlsystem consisting of two point sources and located near a refl ective surface is dependent upon thesystem orientation angle. Based on the mechanism that the refl ecting surface can convert a dipolevertical to the surface into a longitudinal quadrupole, we demonstrate that the introduction of arigid surface to the active noise control system could further enhance the total power reduction.

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    JO - Australian Journal of Mechanical Engineering

    JF - Australian Journal of Mechanical Engineering

    SN - 1446-2672

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