Design And Implementation Of Air Combat Simulation System Based On DDS

In this era of rapid development of information technology,the battlefield environment is becoming more complex,and tactical requirements are increasing.Integrated joint operations have also become information-led wars.In the joint combat simulation system,various simulation entities such as the accusation node,display node,and evaluation node deployed in different combat spaces are connected into a network system,and each simulation node uses this network system to achieve a highly shared battlefield environment situation and combat mission.The purpose of flexible changes is to accelerate the speed of Inter-node interaction,and evaluate the effectiveness of combat missions and equipment through information sharing,thereby improving combat effectiveness.Therefore,how to let different simulation nodes share and flexibly use data information in the network system has become a key issue in joint operations.The air combat simulation system in this thesis involves multiple simulation nodes.To solve the data sharing and interworking among multiple simulation nodes,we need to compare the advantages and disadvantages of different data integration technologies to shield the differences between simulation nodes and realize the interconnection and interoperability of each node in the air combat simulation system.Therefore,this thesis uses the data integration technology of data-centric data distribution service(DDS)proposed by the OMG organization to design a DDS-based integration framework that meets the system.By encapsulating the specific business logic of the underlying DDS,it is distributed to the distributed The simulation node provides a meaningful service interface,which facilitates the later development of distributed simulation nodes,makes the distributed bottom-layer communication completely transparent to the upper-layer applications,and accelerates the integration speed between nodes;however,there are various simulations in the air combat simulation system.However,in the air combat simulation system,there are some problems of data conversion and data structure inconsistency among simulation nodes.Therefore,according to the advantages of XML,such as strong description and scalability,this thesis designs a data integration model framework based on DDS and XML.The model framework uses XML technology as the data conversion format between nodes,uses XML documents to describe the domain,data structure,subject and node information of simulation nodes,enhances the scalability of data structure,unifies the data structure of simulation nodes,and solves the inconsistency of data structure among distributed nodes.Finally,this thesis conducts performance and large data packet transmission tests on the entire system.The experimental results show that the high-throughput mode is suitable for a large packet length in the system,and the high real-time mode is suitable for a small packet length in the system.In the case of high real-time requirements;the test results of the large data packet transmission capability show that the system is more reliable in the case of transmitting large data packets.Two test experiments show that DDS can meet the communication needs of air combat simulation systems.