模糊集间的R_0-相似关系及其性质

将王国俊教授在R0-型逻辑系统中建立的R0-蕴涵算子应用于模糊数学理论之中,在非空集合X为论域的模糊集族F(X)上定义了一种新型运算-R0蕴含运算,并讨论了F(X)上R0-蕴含运算的一些基本性质。通过R0-蕴含运算在F(X)上定义了一个二元模糊相似关系-R0-相似关系,并对其性质进行了较为详细的讨论。在有限论域X确定的模糊集族F(X)上给出了几个R0-相似关系的具体实例。     

基于Mapobjects的双地图窗口的交互查询设计

介绍基于Ｍａｐｏｂｊｅｃｔｓ的双地图窗口的交互查询的设计方法。     

机载脉冲多普勒雷达DBS成像实验研究

脉冲多普勒雷达是现代战斗机普遍采用的一种典型雷达体制。多普勒波束锐化（DBS）已成为机载脉冲多普勒雷达在空／地工作模式中对地面进行高分辨成像的有效途径,因而受到了国内外广泛的重视。本文首先分析了DBS技术的基本原理及其实现步骤,针对载机惯导参数误差较大的实际情况,应用本文提出的新的多普勒质心估计算法－－“曲线拟合相位较正叠代算法”,对某型脉冲多普勒雷达的实测数据进行了成像处理实验研究,给出了实测数据的DBS成像结果,证明了处理过程的有效性。     

邮区中心局生产作业仿真系统研究

邮区中心局生产作业仿真系统使手工难以进行的庞大数据分类处理及汇总分析得以实现,可以为中心局的生产作业和邮运调度管理与决策提供大量准则可靠的的数据资料和决策依据;文章对仿真系统的目标需求、分析设计和系统功能进行了介绍。     

单电子器件的仿真

该文介绍了一种利用正统理论与Ｍｏｎｔｅ Ｃａｒｌｏ方法模拟单电子隧空器件的认真程序。该程序可模拟电子通过包含小隧道结、电容和理想电压源的电路的输运过程,利用该程序,对单库仓岛和多库仓同的单电子晶体管（ＳＥＴ）系统进行了模拟。     

Measuring observability by generalized information theoretic quantities

A normalized measure is established to provide the quantitative information about the degree of observability for the discrete-time, stochastically autonomous system. This measure is based on the generalized information theoretic quantities （generalized entropy, mutual information） of the system state and the observations, where the system state can be a discrete or a continuous random vector. Some important properties are presented. For the linear case, the explicit formula for the degree of observability is derived, and the equivalence between the proposed measure and the traditional rank condition is proved. The curves for the degree of observability are depicted in a simple example.     

三维医学可视化系统

介绍三维医学可视化系统实现的原理及应用。系统通过应用最新的计算机图象处理和图形学技术、实现了图象输入、图象配准、三维重建,数字放射透视图等功能,提供了三维的人体组织、器官的空间形态与位置、为医生的诊断、治疗提供了强有力的可视化工具。     

基于二总线结构的监测系统设计

介绍了二总线通信基本原理,并给出了基于二总线结构的监测系统的构成。该监测系统已在军事领域中得到应用。     

火力发电机组计算机监控系统高可靠性的设计

介绍了火力发电机组计算机监控系统的网络结构、软硬件设计思想及其具体实现方法。     

Operation speed limited by the electric properties of?the?photorefractive spatial light modulator

With excellent photo-electric and electro-optical effects, the photorefractive spatial light modulators can work as optically addressed modulators in optical information processing systems and parallel optical computing systems. The photo-induced current pulses of the photorefractive spatial light modulator observed in the experiments are analyzed to conclude the characteristics, and to find the relationship between the properties of the current pulse and the structural parameters. Furthermore, the origin of the photo-induced current pulse is analyzed, and the methods to improve the operation speed of the spatial light modulators are proposed. The research results will be significant for extending the applications of the photorefractive spatial light modulators, and pushing ahead the research of all-optical modulation materials and devices for optical supercomputing.