多卫星遥感数据的信息融合：理论,方法和实践

首先介绍了信息融合技术的有关内容,进而对多卫星遥感数据融合的研究历史及现状进行了简要的综述,在此基础上,以地质应用为目标,探讨了多卫星数据融合的小波变换方法,研究了不同长度的小波基对融合结果的影响,提出了改进的小波融合模型。同时,对比评价了基于小波变换ＣＭＷＤ,ＩＨＳ变换,ＰＣＡ折融合结果在提高空间分辨率,保持原始图象光谱信息的优劣。     

AutoCAD、MDT与其它软件集成应用的几点体会

一个项目常常需要运用几个软件,有效的互相交换数据才能地完成。如企业ＭＲＰⅡ／ＥＲＰ系统中,一般应包括从旧图纸扫描成光栅图像,再编辑的软件如Ｐｈｏｔｏｓｈｏｐ、Ｓｃａｎｓｍｉｔｈｐｒｅｄｉｔｏｒ;能进行光栅矢量混合编辑,部分矢量化的如ＡｕｔｏＣＡＤＯｖｅｒｌａｙ、ＧＴＸ等;现在通用的２Ｄ机械绘图平台ＡｕｔｏＣＡＤ;目前和将来发展的融合２Ｄ与３Ｄ的通用３Ｄ参数化机械设计平台ＭＤＴ;ＣＡＥ软件,如机构仿真ＷＭ　Ｍｏｔｉｏｎ;有限元分析ＷＭＦＥＡ＆ＷＭＣｏｎｃｅpｔ;ＣＡＭ软件,如加工中心ＨｙｐｅｒＣＡ…     

DWMT系统在TMS320C80上的仿真实现

基于小波变换的离散多音传输系统（ＤＷＭＴ系统）是一种抗干扰能力强的高效数据传输系统,其主要在两种实现方案：（１）基于通用可编程ＤＳＰ芯片的软件实现方案;（２）基于通用ＤＳＰ芯片和专用ＶＬＳＩ芯片的软硬件结合方案。本文在分析了ＤＷＭＴ系统的实实现结构、运算量以及滤波器优化方法等基础上,利用ＴＭＳ３２０Ｃ８０软件开发系统对基于通用ＤＳＰ的软件实现方案进行了仿真,并且详细地介绍了该方案的软件流程以及一些     

基于PDM的CAD/CAPP、CAM集成

该文以８６３／ＣＩＭＳ示范工程的实践和开发为依据,对基于产品数据管理（ＰＯＭ）的ＣＡＤ／ＣＡＰＰ、ＣＡＭ集成进行了深入研究。文章首先给出了系统集成的原则,随后提出了ＰＤＭ的框架体系结构和基于ＰＤＭ的集成技术,最后讨论了基于ＳＴＥＰ的产品数据交换和基于ＳＤＡＩ标准数据接口技术。     

一种基于小波变换的FBM图象生成方法

提出了一种基于小波变换的ＦＢＭ图象生成方法，实验证明了这种基于小波变换的生成方法比传统的ＲＭＤＡ方法和Ｆｏｕｒｉｅｒ方法能更精确地生成二维ＦＢＭ图象。     

CAD／CAM软件市场简略

ＣＡＤ／ＣＡＭ软件市场简略东北大学计算中心庞士宗一、ＣＡＤ／ＣＡＭ软件平台目前，占绝对优势的ＣＡＤ／ＣＡＭ软件平台主要有两种，一个是ＵＮＩＸ平台，一个是近几年兴起的ＷＩＮＤＯＷＳ平台。分析最近的ＣＡＤ／ＣＡＭ软件产品可以看出，ＷＩＮＤＯＷＳ平台的ＣＡ...     

协同质量管理的工作流模型与应用

质量控制和管理是企业ＣＩＭＳ应用的一个重要环节，随着企业全面质量管理的展开和ＣＩＭＳ应用的不断深入，迫切需要研制基于网络的协同式的质量管理系统。在质量管理ＰＤＣＡ循环模式的基础上，我们提出了基于ＰＤＣＡ，多Ａｇｅｎｔ的工作流模型，实现了一个能较全面地，较实际地反映企业质量管理中信息处理以及信息流向的，以协同计算方式来表达的质量信息管理系统模型（ＣＱＭＷＦ）。基于Ｌｏｔｕｓ Ｎｏｔｅｓ平台的系统研制     

特征模型与CAD／CAM信息集成的研究

特征建模技术是实现ＣＡＤ／ＣＡＭ集成的核心，本文对建立在Ｉ－ＤＥＡＳ之上特征建模的研究为基础，针对板块类零件，提出了基于特征的集成模型总体结构和数据的组织方法，该模型以面为纽带，将零件的几何信息加工工艺信息有机地联系在一起，以便使ＣＡＤ的数据能方便地被ＣＡＰＰ、ＮＣ等后续环节所使用，从而为ＣＡＤ／ＣＡＭ的集成奠定基础。     

注塑模CAD／CAE／CAM技术及其发展概况

分析了注塑模ＣＡＤ／ＣＡＥ／ＣＡＭ技术的基本内容，综述了国内外注塑模ＣＡＤ／ＣＡＥ／ＣＡＭ技术的主要特点和研究概况，并指出了存在的问题。提出采用特征造型技术、融合人工智能技术、勾通注塑模ＣＡＤ／ＣＡＥ／ＣＡＭ技术，并指出了进一步发展的方向。     

巧用系统打印机输出AutoCAD、WORD及EXCEL复合工程DWG图形

１前言 ＡｕｔｏＣＡＤ的文字编辑功能很弱,虽然其提供了ＭＴＥＸＴ命令可创建多行文字,但ＭＴＥＸＴ可编辑文字的最大容量为Ｉ６Ｋ,并且不能制表,不能满足一些特定工程图形文件的设计需求。ＷＯＲＤ及电子表格软件ＥＸＣＥＬ,可编辑复杂格式的文档说明和灵活的计算表格。将ＡｕｔｏＣＡＤ和ＷＯＲＤ、ＥＸ．ＣＥＬ集成应用,可以快速制作图、文、表并茂的复合工程ＤＷＧ图形文件。工程设计上一般通过将ＷＯＲＤ文档、ＥＸＣＥＬ表格插入到ＡｕｔｏＣＡＤ图形中,把ＤＷＧ图形文件打印成ＰＬＴ格式文件,然后通过网络传到打印中心批量…     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

基于AD9626的模拟信号采集存储卡设计

自然界的绝大部分信号都是以模拟的形式存在,因此模拟信号的采集转换存储在数字时代十分关键。文章讨论了在雷达信号处理领域基于AD9626的AD采集存储卡的设计原理、硬件结构和程序设计与芯片配置等问题,为今后相关领域的研究提供了可参考的方案。     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

A human-computer interface for non-computer specialists

The COM teleconferencing system was designed to be easy to use for both beginners and people with much computer experience. A number of design choices in organizing the human-computer interface were considered very carefully. These design problems are not unique for teleconferencing applications, but will appear in many other developments of human-computer interfaces for non-computer specialists. This report discusses naming conventions, menu format, user commands, help facility and the treatment of ‘type ahead’ from the users.