2019_programme: SOURCE SENSITIVITY KERNELS FOR NOISE CROSS-CORRELATION



  • Session: 06. Underwater Noise - Modelling and Measurements
    Organiser(s): Gavrilov Alexander, Skarsoulis Emmanuel, Taroudakis Michael
  • Lecture: SOURCE SENSITIVITY KERNELS FOR NOISE CROSS-CORRELATION [invited]
    Paper ID: 1341
    Author(s): Skarsoulis Emmanuel, Cornuelle Bruce
    Presenter: Skarsoulis Emmanuel
    Presentation type: oral
    Abstract: A wave-theoretic tool, the source kernel, is introduced to describe the sensitivity of the finite-frequency underwater noise cross-correlation function to the location of the noise sources taking into account the refractive features of the ocean environment. The cross-correlation of the noise field at two receivers conveys information about the corresponding time-domain Green’s function (TDGF), provided that sufficient energy is channeled into the acoustic paths connecting the two locations. The efficiency of the TDGF recovery is determined by the receiver and noise source locations and characteristics, as well as by the refraction properties of the ocean sound channel. The source kernel takes these characteristics into account and highlights the location of noise sources with maximum impact on the cross-correlation output.
  • Corresponding author: Dr Skarsoulis Emmanuel
    Affiliation: Institute of Applied and Computational Mathematics, FORTH
    Country: Greece
    e-mail: