冷连轧过程线性化动态模型的研究

以多机架四辊冷连轧机为背景,研究了冷连忆过程的动态模型,建立了冷连轧过程的工作点线性化状态空间模型,实验仿真结果说明了这一动态模型的有效性。     

资源受限多项目选择计划模型及其免疫优化决策方案

针对资源受限多项目选择计划问题探讨其数学模型,利用改进的克隆选择算法对其进行求解.算法设计中,利用启发式规则生成初始抗体群;利用变异算子改善进化群体的质量和增强进化群体的多样性;在群体更新中,基于启发式规则,插入新的成员微调进化群体的多样性.数值实验结果说明了模型设计的合理性,以及改进的克隆选择算法的有效性,获得了所建模型的较好决策方案.     

Adaptive SPC monitoring scheme for DOE-based APC

Automatic process control （APC） based on design of experiment （DOE） is a cost-efficient approach for variation reduction. The process changes both in mean and variance owing to online parameter adjustment make it hard to apply traditional SPC charts in such DOE-based APC applied process. An adaptive SPC scheme is developed, which can better track the process transitions and achieve the possible SPC run cost reduction when the process is stable. The control law of SPC parameters is designed by fully utilizing the estimation properties of the process model instead of traditionally using the data collected from the production line. An example is provided to illustrate the proposed adaptive SPC design approach.     

Cluster Synchronization in a Complex Dynamical Network with Two Nonidentical Clusters

This paper further investigates cluster synchronization in a complex dynamical network with two-cluster. Each cluster contains a number of identical dynamical systems, however, the subsystems composing the two clusters can be different, i.e., the individual dynamical system in one cluster can differ from that in the other cluster. Complete synchronization within each cluster is possible only if each node from one cluster receives the same input from nodes in other cluster. In this case, the stability condition of one-cluster synchronization is known to contain two terms： the first accounts for the contribution of the inner-cluster coupling structure while the second is simply an extra linear term, which can be deduced by the ＂same-input＂ condition. Applying the connection graph stability method, the authors obtain an upper bound of input strength for one cluster if the first account is known, by which the synchronizability of cluster can be scaled. For different clusters, there are different upper bound of input strength by virtue of different dynamics and the corresponding cluster structure. Moreover, two illustrative examples are presented and the numerical simulations coincide with the theoretical analysis.     

自治主体建模在海军战术仿真中的应用

多主体系统是分布人工智能和分布计算的交叉研究领域,也是普遍公认的研究和解决复杂自适应系统问题的一种有效途径,而武器装备体系对抗就是一类典型的复杂自适应系统问题.从分析实体模型层次和类型入手,利用作战主体刻画具有复杂作战行为的实体,提出一个作战主体模型框架,阐述作战单元、作战平台和装备的(装配或指挥控制)关联关系.     

Analysis for MIMO correlated frequency-selective channel in the presence of interference

The space time spreading, superimposed training sequences, and space-time coding are used to present a multiple input and multiple output （MIMO） systems model, and a closed-form of average error probability upper bound expression for MIMO correlated frequency-selective channel in the presence of interference （co-channel interference and jamming signals） is derived. Moreover, the correlation at both ends of the wireless link that can be incorporated equivalently into correlation at the transmit end is also derived, which is significant to analyze space-time link algorithm of MIMO systems.     

空袭目标流生成仿真实现

对空袭目标流智能仿真中有关应用背景、实现方法、主要因素等问题进行了探讨。介绍了用专家系统对空袭目标流辅助生成系统进行原型设计的方法。最后给出了系统组成和工作流程。     

Decentralized Bezout Identity and a Parametrization of Decentralized Controllers for Singular Systems

1　 IntroductionConsider a singular decentralized control system of the formEx(t) =Ax(t) ∑Ni=1Biui(t)yi =Cix(t) ,i∈ N ={ 1 ,2 ,… ,N}(1 )where x(t)∈ Rn is the state vector,ui(t)∈ Rmi and yi(t)∈ Rpi are respectively the localcontrol input and measure outputvectors of the ith control channel.The matrix E may besingular,i.e.,rank(E) 相似文献   

Study on the Investment Behavior under Transaction Cost in Futures Market

1　IntroductionAfter10yearsdevelopment,thestockmarketsofchinaarewaitingtoseestock-indexfu-turesinthenewcentury.Itisofgreatimportantforbothsmallinvestorsandlargeinvest-menthousestoadjusttheirbehaviorincasetheyenterintomarketswithnewinstruments.Inrecentyears,speculatingwithfutureswasdiscussedinsomepapers[1～4],andtheresultsachievedroutinelyholdtheassumptionsasnotransactioncosts(TC),nodifferentbetweenborrowingandlandingrates,andalltradingprofitsbeingsubjecttothesametaxrate.Themainproblemisthatne…