基于系统动力学的网络空间作战指挥效能评估?

针对网络空间作战指挥效能评估问题,运用系统动力学方法进行了研究。通过层次熵分法对网络空间作战指挥效能评估指标体系进行了指标权重赋值,依托系统动力学方法建立了指挥效能评估模型并进行了仿真实验,分析了不同条件下指标对指挥效能的影响情况,为研究如何提高网络空间作战指挥效能提供决策依据。     

基于神经网络的模糊理论在桥梁状态评估中的应用

探讨了模糊数学中的隶属函数在桥梁技术等级状态评估中的应用.在研究现有桥梁状态评估方法的基础上,把人工神经网络和模糊数学理论结合起来应用于大跨度预应力斜拉桥的等级状态评估,建立了基于三层神经元的模糊神经网络模型,并建立结构损伤度函数及等级隶属度模型,通过样本学习训练,获取评估专家的知识及直觉思维,最终确定桥梁所对应的技术状态等级.以检测的480组索力数据作为学习样本,另外4组作为验证样本进行了索力状态评估预测.计算结果表明,网络预测值与期望值吻合良好.     

污水处理过程软测量系统辅助变量的选择方法

辅助变量的选择包括变量类型、数量及检测点的选择,是软测量建模的第一步,直接关系到软测量质量的好坏.针对活性污泥法,从微生物生长繁殖的角度出发,探讨了各要素对于微生物生长活动能力的影响及其相互关系,通过影响力大小及相互间耦合性的复杂程度选取辅助变量的原则,完成了污水处理辅助变量类型的初选,并对辅助变量的精选进行了讨论.     

基于神经网络的雷达抗干扰效果评估

分析了常用的雷达抗干扰效果评估方法的特点,建立了雷达抗干扰效果评价指标集,对指标数据的采集和处理方法进行了分析,提出了一种基于神经网络的雷达抗干扰效果评估模型,论述了网络结构和样本获取方法,最后通过算例验证了模型的正确性和实用性.     

BP神经网络的飞机机体研制费用估算

提出一种应用人工神经网络预测飞机机体研制费用的方法.该方法利用偏最小二乘法对飞机性能参数进行了主成分提取,用这些主成分作为BP网络的输入变量,建立了一种基于BP神经网络的飞机研制费用的估算模型,应用该模型对典型的飞机机体研制费用进行了预测.预测结果表明,该方法是有效的、可行的.     

粗糙神经网络的航空电子系统故障诊断方法

提出了一种基于粗糙神经网络的航空电子系统故障诊断方法.该方法运用粗糙集理论进行知识规则的提取,用提取的规则对航空电子系统输出数据进行分类,再用神经网络对每一类进行辨识,最后用粗糙集分类结果与各个神经网络输出进行综合得到系统一步预测结果,将该预测结果与航空电子系统实际输出进行阀值比较,进而进行故障诊断.实际应用表明该方法可行并能够有效地检测系统故障,故障诊断率高.     

基于免疫FNN算法的加热炉炉温优化控制

针对复杂钢坯加热过程,提出了一种免疫克隆进化模糊神经网络(ICE-FNN)控制算法。首先根据现场样本数据建立过程神经网络模型;然后基于该模型,采用模糊神经网络控制器(FNNC)规则优化算法,确定FNNC的最佳规则数;最后由FNNC的规则优化所得参数构造初始种群的一个解,采用免疫克隆进化(ICE)算法对FNNC参数优化。该算法具有全局寻优和局部求精能力,仿真结果证实了其有效性。     

美国陆军网络装备作战评估及启示

作战试验能有效地推动装备体系的建设发展,本文通过分析美国陆军网络集成评估与联合作战评估的作战试验特点,提出军队开展装备作战试验的几个建议。首先,总结了美国陆军网络集成评估到联合作战评估的发展演变,主要包括网络集成评估的地位和作用、网络集成评估的实施流程以及13次网络集成评估和3次作战评估的有关情况;其次,分析了网络集成评估的一系列作战试验特点,诸如实际作战需求牵引、逼真场景构建、试训一体化模式、部队战斗力的直接生成以及作战能力的军民融合式发展等;最后,提出了网络集成评估带来的若干启示,从满足实战能力需求开展作战试验、突出装备体系的互操作能力评估、探索试训结合的作战试验模式、组建专门的作战试验部队及鼓励工业部门参与作战试验等方面推动军队作战试验的发展。     

Damage of multi-layer spaced metallic target plates impacted by radial layered PELE

Three different kinds of PELE (the penetrator with lateral efficiency) were launched by ballistic artillery to impact the multi-layer spaced metal target plates. The impact velocities of the projectiles were measured by the velocity measuring system. The damage degree and process of each layer of target plate impacted by the three kinds of projectiles were analyzed. The experimental results show that all the three kinds of projectiles have the effect of expanding holes on the multi-layer spaced metal target plates. For the normal structure PELE(without layered) with tungsten alloy jacket and the radial layered PELE with tungsten alloy jacket, the diameters of holes on the second layer of plates are 3.36 times and 3.76 times of the diameter of the projectile, respectively. For radial layered PELE with W/Zr-based amorphous composite jacket, due to the large number of tungsten wires dispersed after the impact, the diameter of the holes on the four-layer spaced plates can reach 2.4 times, 3.04 times, 5.36 times and 2.68 times of the diameter of the projectile. Besides, the normal structure PELE with tungsten alloy jacket and the radial layered PELE whit tungsten alloy jacket formed a large number of fragments impact marks on the third target plate. Although the number of fragments penetrating the third target plate is not as large as that of the normal structure PELE, the area of dispersion of fragments impact craters on the third target plate is larger by the radial layered PELE. The radial layered PELE with W/Zr-based amorphous composite jacket released a lot of heat energy due to the impact of the matrix material, and formed a large area of ablation marks on the last three target plates.     

Research on construction of operation architecture based on complex network

Operation architecture plays a more important role in Network Centric Warfare (NCW), which involves dynamic operation networks with complex properties. Thus, it is essential to investigate the operation architecture under the informatization condition within NCW and find a proper network construction method to efficiently coordinate various functional modules on a particular situation, i.e., the aerial combat. A new method integrating the physical level and functional level of NCW is proposed to establish the operation architecture, where the concept of network operation constraints unit and net constructing mechanisms are employed to avoid conflicts among different platforms. Meanwhile, we conduct simulations to assess the effectiveness and feasibility of the constructed operation architecture and analyze the influence of the network parameters.