Lee Freitag

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About

Lee Freitag is a pioneering researcher in underwater acoustic communications and autonomous underwater vehicle (AUV) systems. His key research areas include acoustic modem design, underwater navigation, and human-robot teaming for marine operations. Freitag's most impactful contribution is the development of a multi-band acoustic modem for the Communications and Navigation Aid AUV, detailed in his 2005 paper (44 citations). This system enables reliable, multi-rate data transmission across two frequency bands, specifically tailored for 21-inch AUVs like those from Bluefin Robotics, with potential adaptation to smaller platforms. His work on the Semiautonomous Mapping System (2003, 7 citations) addresses the growing demand for cost-effective, user-friendly undersea robots that deliver high-quality data. More recently, Freitag has advanced loosely-coupled human-robot teams (2022, 2 citations), improving localization and navigation algorithms that allow AUVs to support human divers without ocean surface infrastructure. This innovation enhances diver safety and operational efficiency through subsurface teaming. Freitag's research bridges critical gaps in underwater technology, enabling more capable, accessible, and collaborative marine exploration systems.