Predicting wave glider speed from environmental measurements
Smith, Ryan N., Das, Jnaneshwar, Hine, Graham, Anderson, Will, & Sukhatme, Gaurav S. (2011) Predicting wave glider speed from environmental measurements. In Proceedings of MTS/IEEE Oceans 2011, IEEE, Hilton Waikoloa Village, Kona, Hawai‘i. (In Press)
In the ocean science community, researchers have begun employing novel sensor platforms as integral pieces in oceanographic data collection, which have significantly advanced the study and prediction of complex and dynamic ocean phenomena. These innovative tools are able to provide scientists with data at unprecedented spatiotemporal resolutions. This paper focuses on the newly developed Wave Glider platform from Liquid Robotics. This vehicle produces forward motion by harvesting abundant natural energy from ocean waves, and provides a persistent ocean presence for detailed ocean observation. This study is targeted at determining a kinematic model for offline planning that provides an accurate estimation of the vehicle speed for a desired heading and set of environmental parameters. Given the significant wave height, ocean surface and subsurface currents, wind speed and direction, we present the formulation of a system identification to provide the vehicle’s speed over a range of possible directions.
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