Low-Power Arctic environmental sensors for UUVs

BlueView Technologies, working with the Applied Physics Laboratory at the University of Washington propose to research and develop the application of high frequency imaging sonar to the problem of sea ice thickness and morphology. The use of compact, low power sonar systems in modern Unmanned Underwater Vehicles (UUV) can deliver a significant advance in the measurement of sea ice characteristics to improve the understanding of sea ice formation and melting, impacts of sea ice on ecosystems and oil spills, navigation through sea ice, prediction of ice extent and formation, and the prediction of climate change. In Phase I, requirements for imaging sonar and mission needs will be evaluated and then specific 12-3/4"UUV sonar configurations, ancillary measurements, and processing to support characterization of the ice thickness and morphology will be selected that optimize the information content yet fits within the 60 W design target. In the option to Phase I, BlueView Technologies will develop a preliminary design for an integrated sonar system from the configurations in Phase I to support integration into a 12-3/4 inch UUV, as well as reduce power to the lowest configuration. Specific areas of risk will be identified and a risk reduction plan produced, including some optional risk reduction testing. Finally, a prediction of performance of the system under different operating modes, such as vehicle depth and speed, will be produced.