Review of the control of low dynamic vehicles in near space

The latest development and tendency of the flight control systems for low dynamic vehicles in the near space is analyzed and summarized in view of the new problems in the research of the control technology. Firstly, based on the characteristics of the vehicles, including near-space airships and stratospheric balloons in different flight environments of stratosphere and troposphere, the basic problems and key technologies of the low dynamic vehicles are generalized. Secondly, special attention is paid to the following areas in flight control system design for low dynamic vehicles: the servo control system design, mathematical models, attitude control, station-keeping control, velocity control, trajectory optimization, path tracking control, ascent control, descent control, pressure control, and control strategies in applying all kinds of control approaches. Finally, some key issues are proposed which deserve more attention of the researchers for their solution on the basis of the progress of existing research in relevant fields.