Pressure-sensitive paint (PSP) methods to obtain surface pressure maps over aerodynamic testing models are being investigated by a number of researchers. While PSP techniques offer potential advantages over conventional tap measurements, they generally suffer from a poor signal to noise ratio of the measurements. One powerful tool to filter out noise from signals is the discrete wavelet transform. In the present work, discrete wavelet transform filter bank processing is applied to a signal obtained from a time-resolved pointwise PSP measurement in a shock-induced unsteady flow. The wavelet transform proves effective in filtering noise from aperiodic, un-steady PSP signals. The present results show the importance selecting the number of decomposition levels for best processing performance.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    On Noise Reduction Procedure for Pressure-Sensitive Paint Measurements in Shock-Induced Unsteady Flows


    Beteiligte:
    Sakamura, Y. (Autor:in)


    Erscheinungsdatum :

    01.01.2005


    Format / Umfang :

    5720732 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Unsteady Pressure-Sensitive-Paint Shot Noise Reduction

    Tang, Lucy / Hand, Lawrence / Murakami, David et al. | AIAA | 2021


    UNSTEADY PRESSURE-SENSITIVE-PAINT SHOT NOISE REDUCTION

    Tang, Lucy / Hand, Lawrence / Murakami, David et al. | TIBKAT | 2021


    Noise Reduction and Calibration of Unsteady Pressure-Sensitive Paint

    P. Bremner / M. Shaw-lecerf / N. Roozeboom et al. | NTRS