Ocean Acoustic Laboratory
at the Pacific Missile Range Facility

The Pacific Missile Range Facility (PMRF), a 1,000 square mile region off the west coast of Kuaui, HI, is used to train Naval personnel in such arenas as anti-submarine warfare and mine hunting. The range features over 175 bottom mounted hydrophones that are used to track objects on the range and to communicate with ships and submarines. With funding from the Center for Excellence in Research of Ocean Sciences (CEROS) and the Office of Naval Research (ONR), SSI is developing an automated system that will use theses hydrophones to image the sound speed structure in the region using time-delay tomography. This system is the feature component of the proposed Ocean Acoustic Laboratory at PMRF. The output from the tomographic imagery is then used to constrain a high resolution hydrodynamic ocean model of the region. The final output of the system is a high fidelity and high resolution estimate of the ocean region's sound speed structure that can be used as a sonar system training tool. The effects of the environment on sonar system performance are often under-represented - the OAL is an important step in improving understanding and possibly exploitation of the environment.
 

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