ONR Graduate Traineeship Award Update

Noise correlation processing extracts coherent signals from seemingly random noise data. Although this technique has been successfully used in processing ocean ambient noise data it has severe limitations due to the changing ocean environment and the spatial and temporal variability of the ambient noise field. In this project we are: (1) investigating the physics of the noise processing procedure that constrains the optimum correlation, (2) attempting to understand where and how the degradation of the derived time domain Green’s function (TDGF) comes about, and (3) exploit array and signal processing techniques to optimize the signal-to-clutter (otherwise known as the ‘signal-tonoise’) rate of the noise correlation processing.