VTOL control focus on the system identification, model based simulation and controller design.  To achieve these, full scale vehicle wind tunnel tests are conducted to get the aerodynamic of our vehicle; motor wind tunnel tests are conducted to get the performance of our rotors according to advance ratio and a hierarchical controller structure is built to do both manual and autonomous flight.

Control targets include:

• quad rotor tail-sitter;
• dual rotor tail-sitter;
• hybrid system vehicle.

Current research interests including: online and off-line system identification, wind estimation, adaptive control, disturbance observer design.