ONR Graduate Traineeship Award Update
SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA MARINE PHYSICAL LAB
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LONG-TERM GOALS This project s goal is to explore ways of using ambient noise in the ocean to extract the physical characteristics of the ocean environment. In addition, this research is the the PI s Ph.D. research, leading to her completed Ph.D. this term. OBJECTIVES 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.
- Physical and Dynamic Oceanography