Under-the-Hull Diver Location System: Report of Test Results
NAVAL OCEAN RESEARCH AND DEVELOPMENT ACTIVITY STENNIS SPACE CENTER MS
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The Supervisor of Diving and Salvage NAVSEA OOC funded the Ocean Technology Division of the Naval Ocean Research and Development Activity NORDA to conduct a competitive selection and demonstration of commercially produced, field-proven, acoustic tracking equipment that could be used as an Under-the- Hull Diver Location System UHDLS. After competition, NORDA selected two contractors that produce commercially available acoustic position and tracking equipment to demonstrate their equipment experimentally in a test environment. The equipment was demonstrated in three environments a pool, a lock, and a dockside under the vessel Pearl River. The demonstration determined that both systems could track a diver in the highly reverberant, multipath environment under the hull of a ship. The accuracy with which they could track the diver and the maturity of the software to present the results were the major differences. One system demonstrated used a general-purpose computer, and the other used a personal computer for the Diver Supervisor Display Unit. A Diver Supervisor Display Unit capable of withstanding the environment that would be encountered aboard ship would have to be developed for UHDLS. This report recommends that option 3 adaption of underwater tracking equipment to a limited capability UHDLS in accordance with reference 3 of the demonstration contract be exercised to procure the Sonardyne equipment. This action will effectively procure the development of the Diver Supervisor Display Unit with menu-driven software for the unit.
- Acoustic Detection and Detectors