虚拟企业协作博弈中的双优策略

讨论了目前供应链中的虚拟企业的基本概念及出现的背景 ,介绍了动态联盟为基础的敏捷制造模式 ,从对偶线性规划和双层规划的思想出发 ,在虚拟企业中共赢策略的基础上提出双优的实施策略 ,论述了达到双优所需要的条件及可行性 ,最后讨论了供应链的敏捷性 .     

一种基于似然比的信息融合与决策方法

针对诊断或决策问题中的多信息特征 ,建立了具有信息融合功能的多级决策结构 ,通过信息融合 ,减小系统输出的不确定性和提高系统决策的可靠性。为解决决策问题中信息的不确定性 ,提出了一种基于似然比的决策策略 ,以结论元间的似然比为决策的中间变量 ,构造了具有局部决策和全局决策两级结构的多级决策器 ,并设计了局部决策规则和全局决策规则。最后通过实例证明了该方法的可行性。     

雷达干扰效果模糊综合评估方法研究

运用模糊综合判别的思想 ,研究了雷达干扰效果的评估问题 ,建立了衡量干扰效果各因素的模糊评价模型 ,提出了一种新的基于模糊综合的干扰效果评估准则和度量方法。结合实例 ,在分析影响雷达干扰效果因素的基础上 ,应用这种方法做了初步评估 ,并对该评估方法做了简要分析     

The Entropy of System Decreases with the Deflection from the Equiprobability Distribution

1　IntroductionEntropy,asameasurementthatdescribestheuncertaintyofsubsystemsdistributioninasystem,hasdevelopedunceasingly.First,R.J.E.Clausiusintroduceditintothermodynamics,asastatefunction,todescribetheauto-evolutionabilityofthestate.Thedifferenceofentropybetweenthetwostatesequalstothequantityofheatabsorbedbythesysteminanisothermalprocess,thatisS2-S1=∫21dQT(1)　　L.E.Boltzmannconnecteditwiththeuncertaintyofsubsystemsdistributioninathermodynamicalsystem.Theentropyofathermodynamicalsystem…     

防卫行动指挥训练模拟系统研究

反恐斗争是一种特殊的军事斗争形式,是当前军事训练领域的一个重要内容。为满足国内城市“反恐、防恐”的需要,满足驻城部队军官指挥行动训练的需求,我们研制了防卫行动指挥训练模拟系统。首先介绍了该训练模拟系统要达到的总体战技指标、实现的主要功能,然后给出具体实现的硬件构成和各相应的模块子系统、各个分系统的相互关系,以及电台模拟与实时语音通信技术,最后介绍了系统研制过程当中所采用的关键技术。该系统在某装甲步兵分队应用后,反映效果较好、收效明显,对驻城区部队的“反恐”训练具有很强的推动作用。     

粒子群算法在投资组合中的应用

投资组合面临现实证券市场中大量数据，求解组合模型是一个非线性整数规划问题，传统数学规划算法难以有效求解。为此，本文将粒子群算法应用到基于VaR的投资组合模型中，并通过上海证券交易所的实际数据进行计算机模拟，结果说明该算法所求最优投资组合是实用的和有效的。     

Stability analysis of the simplest Takagi-Sugeno fuzzy control system using circle criterion

A frequency-domain-based sufficient condition is derived to guarantee the globally asymptotic stability of the simplest Takagi-Sugeno (T-S) fuzzy control system by using the circle criterion. The analysis is performed in the frequency domain, and hence the condition is of great significance when the frequency-response method, which is widely used in the linear control theory and practice, is employed to synthesize the simplest T-S fuzzy controller. Besides, this sufficient condition is featured by a graphical interpretation, which makes the condition straightforward to be used. Comparisons are drawn between the performance of the simplest T-S fuzzy controller and that of the linear compensator. Two numerical examples are presented to demonstrate how this sufficient condition can be applied to both stable and unstable plants.     

Distributed power control algorithm based on game theory for wireless sensor networks

Energy saving is the most important issue in research and development for wireless sensor networks. A power control mechanism can reduce the power consumption of the whole network.Because the character of wireless sensor networks is restrictive energy,this paper proposes a distributed power control algorithm based on game theory for wireless sensor networks which objects of which are reducing power consumption and decreasing overhead and increasing network lifetime.The game theory and OPNET simulation shows that the power control algorithm converges to a Nash Equilibrium when decisions are updated according to a better response dynamic.     

NECESSARY AND SUFFICIENT CONDITION FOR GLOBAL CONTROLLABILITY OF A CLASS OF AFFINE NONLINEAR SYSTEMS

In this paper, we investigate the global controllability of a class of n-dimensional affine nonlinear systems with n- 1 controls and constant control matrix. A necessary and sufficient condition for its global controllability has been obtained by using the methods recently developed. Furthermore, we generalize the above result to a class of affine nonlinear systems with a block-triangular-like structure. Finally, we will give three examples to show the applications of our results.     

有色噪声中多个周期相近信号参数的估计算法

本文提出了一种“谐波组清除算法”来估计周期信号的参数。该算法不仅计算简单并可获得较高的频率分辨率,而且对信号模型具有较强的鲁棒性。最后,用数值仿真数据与实测直升机噪声数据对该算法进行了检验。