| With the rapid development of unmanned combat equipment,UAV has become a key research object with its excellent attack performance,which has attracted extensive attention of scholars at home and abroad.At present,the research methods of UAV combat are mostly based on the combination of physical flight and simulation experiment.However,there are some problems in the process of combat simulation,such as low model accuracy,difficult virtual real interaction,weak commander combat experience and so on.Based on virtual twin technology,a UAV attack decision simulation system is developed in this paper.Firstly,based on the architecture rules,this paper designs the overall architecture of UAV attack decision virtual twin system;Secondly,the software and hardware loop of UAV is redesigned to realize the interactive communication of virtual entity UAV;Thirdly,the UAV attack decision problem is solved optimally,and the display interface and command window are provided for the commander;Finally,several virtual reality combination scenarios are designed and verified by simulation.The research content of this paper includes the following four aspects:1.Design the overall architecture of UAV attack decision virtual twin system.Taking a single four rotor UAV as the research object,combined with the model design principle of "entity object + virtual object + application service",this paper designs the physical framework and logical framework to meet the needs of UAV attack decision-making task.On this basis,according to the design principle of universal five-dimensional model,the overall architecture of the system is integrated as the development basis of UAV attack decision simulation system.2.Realize the interactive communication between virtual UAV and physical UAV.In view of the low accuracy of the model and the difficulty of virtual real UAV interaction,this paper first takes the open source robot operating system ROS as the development basis of the virtual twin system to build an accurate digital twin.Secondly,the software and hardware loop of UAV is redesigned and transformed.Finally,through the virtual real UAV simulation experiment,the data communication accuracy and virtual real interaction performance of UAV attack decision virtual twin system are verified.3.Design the assistant decision-making scheme for the commander under the virtual twin system.In view of the commander’s weak combat experience,this paper first uses the multi-functional simulation software gazebo to construct the visual virtual scene,so as to provide the commander with an intuitive and accessible display interface.Then,a convenient and efficient instruction window is sent to commanders to command and control virtual UAVs and UAV in real time.Particle swarm optimization algorithm is used to optimize and solve the UAV attack decision-making problem,so as to provide realtime decision support for the commander.4.Design the case of virtual reality combination of UAV.Firstly,based on the accuracy investigation of twin UAV,this paper designs cruise cases of different virtual scenes and virtual real combination cases of actual scenes.Then,on the basis of ensuring the reliability and feasibility of the system,edit the UAV attack decision scenario,and design the bomb dropping case of UAV under the scenario background.Through the analysis and comparison of simulation data,the basic operation function and auxiliary decision-making performance of UAV attack decision virtual twin system are verified.The case operation results show that the damage rate of UAV attack decision is more than80%,which can effectively achieve the purpose of accurate attack. |
