UAV views of megalithic monument ST_129 (top left: from the north; top right: from the east; bottom left: from the south; bottom right: from the south-west) (© DGA). The preserved internal diameter of the chamber is of 2.30 m from northeast to southwest; the preserved external diame...
Aims to the defect of using pilot balloon theodolite to track and detect the rising balloon and get meteorological data, the project is put forward that using intermediate, long-range, long-endurance unmanned aerial vehicle (UAV) as a platform, mounting dropsonde to implement meteorological detection...
This paper combines back-stepping and active disturbance rejection control (ADRC) to form an integrated controller for quad-rotor UAV with multiple uncertainties. First, the aerodynamics model of the quad-rotor UAV is analyzed, and the control law of the back-stepping is deduced. Second, after ...
Design on Dropsonde Meteorological Detection System Based on UAV Hong Wang, Xuhui Chen, Xiaorong Zhou Aims to the defect of using pilot balloon theodolite to track and detect the rising balloon and get meteorological data, the project is put forward that using intermediate, long-range, long-endura...