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Beijing, China

Shi J.-G.,Nanjing University of Science and Technology | Wang Z.-Y.,Nanjing University of Science and Technology | Chang S.-J.,Nanjing University of Science and Technology | Zhang B.-S.,Navy Arming Academe
Nanjing Li Gong Daxue Xuebao/Journal of Nanjing University of Science and Technology | Year: 2011

In view of the appearance of nonlinearity and time variation of parameters in the control system for guided projectiles, it is difficult to acquire a satisfactory control effect only using the conventional PID. According to the definition and properties of fractional calculus, the structure of fractional order controller is constructed and the effect of controller parameters on the system performance is analyzed. The fractional order controller is applied to the control system design for guided projectiles and the fractional order control system is also investigated. The results show that the fractional order controller has stronger robustness and anti-interference ability than the conventional PID controller. It can be applied to the control system of guided projectiles. The fractional order controller has better response characteristics than the conventional ones in both frequency and time domain. The results presented here are useful for the application of the fractional order controller to the control system of guided projectiles. Source

Peng C.,Navy Arming Academe Postdoctoral Workstation | Deng J.,Navy Arming Academe | Zhang B.,Navy Arming Academe
Xitong Fangzhen Xuebao / Journal of System Simulation | Year: 2015

It's an important approach to build reasonable and complete simulation model architecture for promoting the simulation interoperability, establishing simulation model standards and promoting reusability of models and codes. Some problems existed in the research of simulation model architecture were analyzed. The weapon and equipment simulation model architecture describing method based on multi-views was brought out by using the system engineering theory, which emphasized on the complicated relations between modes and its environment. The method could describe simulation model architecture from different views of different users. Therefore, based on DoDAF and the popular software architecture, five-view models of weapon equipment simulation model architecture framework were introduced, named process view, development view, process view, physical view and scenario view. The unified simulation model library construction plan based on the framework was analyzed, and the trend of research in the future was described briefly. ©, 2015, Chinese Association for System Simulation. All right reserved. Source

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