基于智能模糊动态特征模型的高超声速飞行器先进控制

项目名称： 基于智能模糊动态特征模型的高超声速飞行器先进控制

项目编号： No.61074066

项目类型： 面上项目

立项/批准年度： 2011

项目学科： 金属学与金属工艺

项目作者： 罗熊

作者单位： 北京科技大学

项目金额： 10万元

中文摘要： 本项目面向高超声速飞行器此类复杂非线性系统，针对经典特征建模方法由于搜索单一状态空间，对建模速度和精度有可能造成的影响，通过结合系统实际物理特性，在特征建模理论中加入模糊逻辑，对特征建模的状态空间进行模糊分割，进而提出了智能模糊动态特征建模方法。研究了智能模糊动态特征模型对高超声速飞行器复杂系统的逼近性能；同时，在建立的模糊系统中，提出了基于改进分布估计算法的模糊规则优化提取与生成方法，进一步改进了我们提出的建模方法的性能。在此基础上，讨论了基于模糊动态特征建模方法的闭环控制系统稳定性。最后，将提出的建模与控制理论方法应用于特定型号的高超声速飞行器，进行了初步的数值仿真测试与虚拟仿真验证。另外，还针对提出的新建模方法，研究了在网络控制等其他复杂系统控制中的应用，拓展了方法的应用领域。通过本项目研究，提高了高超声速飞行器自主机动控制的智能化水平，为推动控制技术向更深广的智能自主阶段发展奠定了技术基础。

中文关键词： 模糊动态特征模型；高超声速飞行器；复杂非线性系统；建模与控制

英文摘要： Because the search strategy for the single state space is used in the traditional characteristic modeling method, it causes a certain influence on the precision and speed of modeling method. Aiming at hypersonic flight vehicle which is a complex nonlinear system, an intelligent fuzzy dynamic characteristic modeling method is proposed by introducing fuzzy logic theory. In so doing, after considering the practical characteristics of hypersonic vehicle, the corresponding state space is divided by using fuzzy theory. Here, in view of the above complex system, the universal approximation of intelligent fuzzy dynamic characteristic model system is analyzed. Meanwhile, based on the hybrid estimation of distribution algorithm (EDA), the corresponding improvement method for fuzzy rule abstraction is discussed. In addition, the stable capability of close-loop system under fuzzy adaptive controller designed by using intelligent fuzzy dynamic characteristic modeling method is proved. Finally, the numerical and virtual simulations are implemented to validate the effectiveness of the proposed theories in the specific experimental platform of hypersonic flight vehicle. Moreover, based on the proposed novel modeling method, the new application for network control system is discussed. The research work in this project will improve the intelligential level of the hypersonic vehicle autonomous maneuver control and lay the foundation for the development of the space control technology to advanced intelligent autonomous control.

英文关键词： Fuzzy dynamic characteristic model; hypersonic flight vehicle; complex nonlinear system; modeling and control