固定翼无人机自动着陆控制律

北京理工大学珠海学院2020届本科生毕业设计（论文）Design of automatic landing control law for fixed wing UAVABSTRACTNow the development of UAV is quite rapid,many countries in the world are developing avariety of purposes of the UAV,the performance of the UAV is constantly put forward newrequirements.Military and civil fields can often see the figure of UAV,compared withman-machine has many advantages,can be flexible and excellent to complete the task,has beenfavored by various countries.Landing is the most critical stage in the whole flight of a UAV,andthe ability to precisely control the landing site is a crucial factor in determining the performance ofa UAV.The precise and convenient automatic landing of UAVs is playing more and moreadvantages,among which the precise control law design has become the top priority of safeautomatic landing.This paper first introduces the development and application of unmanned aerial vehicles(UAVs)with automatic landing function in the world,explains the flight mode of UAVs,andsummarizes the recovery methods of different UAVs.Then according to the characteristics andrequirements of each stage of the UAV automatic landing process,the landing trajectory of theUAV automatic landing process is designed by means of reverse logic.Then the longitudinal andlateral control laws of UAV are designed based on PID control according to the requirements ofeach stage of the automatic landing process.At last,it summarizes the shortcomings and prospectsof the argument.Key words:UAV Automatic Landing Control Law Glide PathII