Hilbert空间中无穷多个Lipschitz单调映像变分不等式解的逼近定理

首先给出了Hilbert空间中无穷多个Lipschitz单调映像变分不等式解的迭代格式,并证明了其收敛性。作为应用,证明了Hilbert空间中Lipschitz伪压缩映像的强收敛定理,扩展了已知的相关结果。     

基于反向验证的RSC码编码参数盲识别

针对Turbo码编码中应用的RSC编码器盲识别问题,提出一种反向验证的方法,对其参数进行识别分析。通过对RSC编码器参数进行遍历估计,重新输入码字序列,将得到的码字序列与原来的输出序列进行对比,找出最优的参数组合,完成对RSC编码参数的识别。仿真实验表明,该方法能够有效完成对RSC编码器的参数识别,特别在误码率为0.3时,依然能够达到识别效果,具有较好的容错性能。     

BTT导弹状态反馈H_∞控制自动驾驶仪设计

针对倾斜转弯(BTT)导弹自动驾驶仪的抗干扰性和鲁棒性问题,以考虑耦合的情况下建立的更接近于实际的导弹数学模型为基础,将通道间的耦合作为干扰,在弹道特征点上对导弹模型进行解耦和线性化,得到各个通道的数学模型;设计基于线性矩阵不等式(LMI)的状态反馈H_∞控制自动驾驶仪,搭建全耦合状态下的三通道仿真模型,并进行联合仿真研究。结果表明所设计的状态反馈H_∞控制自动驾驶仪能够实现对导弹制导指令的有效跟踪,满足BTT导弹控制的要求。     

Bullwhip and reverse bullwhip effects under the rationing game

When an unreliable supplier serves multiple retailers, the retailers may compete with each other by inflating their order quantities in order to obtain their desired allocation from the supplier, a behavior known as the rationing game. We introduce capacity information sharing and a capacity reservation mechanism in the rationing game and show that a Nash equilibrium always exists. Moreover, we provide conditions guaranteeing the existence of the reverse bullwhip effect upstream, a consequence of the disruption caused by the supplier. In contrast, we also provide conditions under which the bullwhip effect does not exist. In addition, we show that a smaller unit reservation payment leads to more bullwhip and reverse bullwhip effects, while a large unit underage cost results in a more severe bullwhip effect. © 2017 Wiley Periodicals, Inc. Naval Research Logistics 64: 203–216, 2017     

超视距多目标攻击排序及火力分配建模与解算

针对未来超视距空战条件下的多目标攻击排序和制导武器火力分配问题,提出了一种用以评估超视距空战作战效能的综合优势指数法;当目标数多于攻击机数时,通过构造综合优势矩阵,将非平衡指派问题转化为平衡指派问题,并建立了多目标攻击排序的0-1规划模型,该模型可解决对多个目标同时攻击的排序问题;以2对8攻击排序为例,利用求解线性规划软件Lindo6.0进行解算。最后,建立了1对4攻击火力分配的非线性规划模型,并利用求解非线性规划软件Lingo5.0进行解算。计算结果验证了建模的合理性和运用Lindo、Lingo软件求解较大规模目标攻击排序和火力分配问题的实时性。     

三维静磁场Lipschitz区域上Robin问题广义解的存在与唯一性

近年来,电磁场边值问题的数值解法取得了飞速的发展．由于电磁场边值问题是一类非线性偏微分方程,研究解的存在性、唯一性具有较大的困难．前人已讨论了B-H间的几个基本不等式,并由之证明了三雏静磁场带零边值问题广义解的存在与唯一性,作者也曾利用给出的B-H间的不等式证明了三维静磁场Neumann问题和二维时变场第一边值初值问题广义解的存在与唯一性．由于在一般区域讨论存在困难,作者利用Sobolev空间理论及单调算子理论证明了三雏静磁场Lipschitz区域上Robin问题广义解的存在与唯一性．     

油料装备的反求创新设计研究

油料装备的反求创新设计可以使开发出的新装备性能更优、功能更全,开发周 期缩短、开发费用大大降低,且开发成功率显著提高。介绍了油料装备的传统设计方法,对 油料装备反求创新设计进行了分析研究,提出了油料装备反求创新设计的一般过程,并用实 例对该方法进行了具体分析,可供设计、开发新型油料装备时参考。     

关于半鞅的可料表示性

利用鞅空间H1的泛函表示定理、泛函分析中的Hahn-Banach定理、半鞅向量随机积分的Girsanov定理,获得了半鞅可料表示性的特征。由于使用的是半鞅的向量随机积分,它推广了经典的结论。     

Defence Spending and Income Inequality in Taiwan

The rising trend in income inequality has recently attracted a renewed interest in the determinants of this growing trend across many countries. This article adds to the debate by investigating the impact of defence expenditure as a possible determinant of inequality in Taiwan, a country once was considered to be a poster child of an equitable growth, but now income inequality has become one of the Taiwan’s growing challenges. Applying the bounds test approach to cointegration and four long-run estimators for the period from 1976–2011, we found a long-run relationship between the various measures of inequality and defence expenditure where defence expenditure exerts a positive and a statistically significant impact on the worse income inequality in Taiwan. Further application of the lag-augmented causality test procedure also reveals a unidirectional causality running from defence expenditure to income inequality with defence expenditure causing income inequality to rise.     

通信对抗无人机集群侦察区域规划规则研究

侦察区域规划是通信对抗无人机集群智能侦察的首要任务.能否合理规划侦察区域,对通信对抗侦察任务的完成至关重要.通过研究侦察区域规划分配和动态调整流程,结合通信对抗战斗原则和相关军事经验,整理归纳出通信对抗无人机集群进行侦察区域规划的行为规则、判定规则和策略规则,并提出了规则的使用建议,构想了具体应用场景.