TJ-FlyingFish: An Unmanned Morphable Aerial–Aquatic Vehicle System.

The article discusses the development of an unmanned aerial-aquatic vehicle system called TJ-FlyingFish. The system is designed to maneuver effectively in both water and air, utilizing a dual-speed and tilting propulsion units for thrust and agility. A multi-sensor-based localization system supports seamless transitions between aerial and aquatic environments. The article presents the design, control scheme, and experimental results of the TJ-FlyingFish system. The text also discusses challenges in localization, dynamics modeling, and control design, as well as the performance of the propulsion units. Ongoing efforts are focused on improving algorithm and structure design for better performance. [Extracted from the article]