Multi-sensor Data Fusion Simulation System Based On DIS Protocol

Content: In recent years, data fusion technique is one of focus of information technology. Measured datum of different sensors is required in data fusion. Real measured data of sensors is difficult to produce. It involves many units and armies in cooperating. Simulation system can resolve it easily. With the DIS, data fusion simulation system can bring about some advantages such as simulation units changing or upgrading independently, real time observation and so on.This dissertation is focus on the research of multi-sensors distributed interactive simulation system based on data fusion. Firstly, by illustrating relevant concepts of data fusion and the technology of distributed interactive simulation (DIS) in the paper, the necessity and practicability of using DIS protocol to developing this simulation system based on data fusion are proved. Then the requirement analysis and the structure design of the distributed interactive simulation system are presented. On this basis detailed design of each functional module is finished with the emphasis on modeling and object-oriented design (OOD) of sensors and objects. And the principles, type and format of PDU in the DIS are also presented. In addition, the key technologies of the distributed interactive simulation system such as the synchronization technologies, the coordinate switch method, dead reckoning technologies and so on are discussed. On the basis of this work, interface of DIS objects model and application of simulation is developed, the DIS system is implemented. At last, the application of simulation is given .several different experiments which provide datum to data fusion are carried out. The result of experiments proves that the DIS system can provide the availably datum to data fusion and it is agile, expansible and applicable.