文档介绍：2011-12题录英译集
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舰艇对来袭反舰导弹威胁评估算法
尹高扬,周绍磊,张文广
(海军航空工程学院控制工程系,山东烟台 264001)
摘要:针对传统层次分析法在确定权重系数上的缺陷和不足,提出一种基于主成分分析法、模糊理论和层次分析法的威胁评估算法。在综合考虑主观和客观因素的基础上,运用主成分分析法得出指标层中各指标的重要性大小,并应用到层次分析法中判断矩阵的确定,求解出指标层对于目标层的相对权重,与运用模糊理论中威胁隶属度函数的建立求解出的各指标对于方案层中不同目标的威胁属性值融合,得到总的组合权重。通过Matlab仿真实例结果表明:该算法得到的威胁排序结果客观、合理。
关键词:主成分分析法;威胁评估;层次分析法;模糊隶属函数
Threat Evaluation Algorithm of Warship to Defend Anti-Warship Missile
Yin Gaoyang, Zhou Shaolei, Zhang Wenguang
(Dept. of Control Engineering, Naval Aeronautical & Astronautical University, Yantai 264001, China)
Abstract: In allusion to the shortage of traditional analytic hierarchy process (AHP) in the determination of weight coefficient, a threat evaluation algorithm based on the ponents analysis, fuzzy theory and AHP was proposed in the article. The subjective and objective factors prehensive considered. The importance of each index in index layer obtained by the ponents analysis method was used to gain the judge matrix in the AHP, then the relatively weight of index layer to target layer was obtained. The threat attribute value of different targets in scheme layer was gained by establishing fuzzy membership function. Then, the bination weight of each target was gained. The simulation proved that the result obtained was objective and reasonable.
Keywords: the ponents analysis; threat evaluation; AHP; fuzzy membership function
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空-空导弹μ综合控制降阶与算法
臧月进,陈欣,张民
(南京航空航天大学自动化学院,南京 210016)
摘要:针对新型空-空导弹中μ综合方法设计的控制器受到弹载处理器的计算能力等约束,呈现高阶、刚性、病态坏条件等问题,提出了一种收敛性更强的“隐式欧拉加外推”算法。通过对比平衡截断法和Hankel范数逼近法对控制器进行降阶优化处理,对比降阶效果进行偏差估计,分析降阶前后与降阶方法差异导致的闭环系统鲁棒性,证明Hankel范数逼近方法在降阶效果和性能保持能力方面更佳。并根据刚性特征,提出了一种“隐式欧拉加外推”算法。仿真分析和测试数据表明:该算法相对其他ODE差分格式有显著的收敛性,单步运算速度仅2 ms,满足实时性要求。
关键词:空-空导弹;降阶;μ综合;平衡截断;Hankel范数逼近;隐式欧拉加外推;刚性
Order Reduction and Arithmetic of Air-to-Air Missile μ-Synthesis Controller
Zang Yuejin, Ch