Research On The Method Of Accurate Operation Of UAV

Due to the unique flexibility and superiority,unmanned aerial vehicles(Eaves)play an increasingly important role in modern agribusiness and military warfare.They often perform tasks in complex and uncertain conditions.In this paper we mainly study the establishment of decision rules involved in decision-making method of Eaves.The advantages and disadvantages of the decision rules are the key factors that affect the accuracy of UAV operations.Firstly,the architecture faces to the UAV mission is designed.In order to improve the ability of each subsystem to complete the task independently,the factors that may affect the decision of Eaves are comprehensively selected.According to the dynamic model and system structure of UAV,the architecture of the top layer is designed.This structure provides the basis for the design of UAV task flow.The applications of rough set in UAV operation are introduced,which lays the foundation for the following research.Secondly,according to the idea of rough set theory,the design rules of spatial attributes based on the idea of control system elements in UAV decision are designed.And the influence of the coverage range of attribute values in the task space on the UAV operation is analyzed.Then the method of attribute set dependency based on rough set is used to solve the attribute reduction to obtain the decision rule.Finally,using the simulation experiment of ova to verify the selection rule of attribute and range of attribute is reasonable and effective.Again,the degree of quantization of UAV operation section is studied,and the design method of attribute quantization level based on Gaussian distribution function is proposed.According to the rule of density distribution of precision operating condition attributes,the finely quantization of attribute method based on discrete distribution density is designed,and the finely quantization table is established.Finally,the effect of quantization degree on the accuracy of UAV operation is verified by flight simulation experiment.Finally,based on the above research,the hardware platform of UAV is built and the actual flight experiment of the UAV is carried out.The experimental results prove the feasibility of the attribute design rules.Compared with the equidistant quantization method,the finely quantization method improves the accuracy of decision making.