关于飞行器的研究，建立四旋翼飞行器基于刚体的初步力学模型，及参数测量，研究多旋翼飞行器的空气动力学特性。基于模型的控制算法。-Research on the aircraft, the establishment of four-rotor aircraft based on preliminary mechanical model of a rigid body, and parameter measurement, Multi-rotor aerodynamics. Model-based control algorithms.