Research Areas
Projects

Research Areas

Our research is dedicated to the physical understanding of acoustical phenomenona in the ocean and its application. The area of research includes analytic and numerical modeling, exploratory data processing and analysis, and advanced development of solutions, based on understanding of sound propagation in the ocean media and boundaries. We currently conduct the research in the following focus areas:

  Sound Propagation Modeling
    - Range dependent propagation modeling using the parabolic equation (SNUPE)
    - Pseudo-spectral time-domain (PSTD) propagation modeling
    - Wave propagation modeling in the porous medium

  Reverberation and Scattering Modeling
    - Time-domain reverberation modeling with ray theory
    - Ocean surface scattering with PSTD method
    - Target scattering modeling

  Ocean Sediment Acoustics
    - Sound in the porous medium
    - Shallow water acoustics with the ocean sediment

  Sonar Applications for AUV
    - Obstacle avoidance system using active sonar (SNUUV 1)
    - Concurrent mapping and localization

  Matched Field Processing
    - Robust matched field source localization
    - Model based geoacoustic inversion

  Underwater Communication
    - Underwater waveguide channel estimation
    - Adaptive equalizer in the underwater channel

  Flow Noise Reduction
    - Acoustics of ducts and mufflers