基于TMS320C6203B的雷达视频采集与处理系统

系统介绍了一种采用TI公司高速DSP芯片TMS320C55203B实现雷达视频压缩系统的应用开发过程，包括硬件设计，软件编程和系统调试。该系统具有数据处理能力强、结构灵活等优点。     

电力线载波技术实现变流器的分布式控制

本文介绍了北京福星晓程公司PL3200芯片的主要特点、结构、载波通信原理以及基于该芯片的电力线载波通信应用的硬件电路设计原理,并给出了将该芯片构成的电力线载波通信系统应用于蓄电池化成分布式测控系统的数据通信的方案。     

基于DSP的新型数字式SPM系统硬件方案研究

本文以德州仪器公司的TMS320C6713DSP为基础。介绍了一种新型数字式SPM系统的硬件解决方案。文章首先指出原先的SPM系统的一些缺点，进而介绍数字信号处理器TMS320C6713芯片的一些优点，最后给出了基于该DSP芯片的主控板的主要结构以及整个数字式DSP-SPM系统的硬件方案。     

基于DSP的喷码机运动控制系统的设计

介绍了基于数字信号处理器的喷码机运动控制系统的设计。该系统以TI公司的运动控制芯片TMS320F2812和功率驱动芯片L297、L298为核心,实现了步进电机的精确控制,具有结构简单、性能可靠、控制精度高、功耗小等特点,最后详细给出了实现系统的软硬件结构,并在实验室实现了该运动控制系统。     

介绍一种32位微处理机——MicroVAX 78032芯片

本文介绍美国DEC公司于1985年推出的MicroAXⅡ系统的CPU芯片—MicroVAX 78032。介绍开发该芯片的背景和设计目标,所采用的压缩设计的技术途径,设计过程情况,最终芯片设计,该芯片的功能结构及其物理实现。     

一种实用的指纹自动识别系统的设计

提出了一种基于TI（Texas Instruments)公司的高性能DSP芯片的实用指纹自动识别系统，并且详细介绍了该系统的设计方案和设计技巧。该系统用DSP芯片来优化处理指纹识别算法，具有速度快、体积小、价格低并且兼容性好等优点。     

Neuron多处理器芯片及其应用

Neuron芯片是美国Motorola公司和日本Toshiba公司制造一种多处理器结构的神经元芯片。它将通信协议和控制用微处理器有效地集成在一起，实现通信、控制、调度和I／O等功能。本以MC143150为例，介绍有关Neuron芯片的基本结构和组成、LonTalk协议以及应用系统的组成方式等。     

基于FXAFA算法的有源噪声消除系统

自适应介绍了基于TI公司提供的DSP芯片TMS320VC5402的自适应有源噪声控制（active noise control，ANC）系统，给出了系统的工作原理及其硬件结构，并详细说明了基于平均的FXAFA（Filtered-x Adaptive Filtering with Averaging）算法，给出了程序流程图和实验结果。通过实验证明，该系统有较好的降噪效果。     

一种高性能浮点DSP芯片TMS320C6713及其最小系统的设计

德州仪器公司推出的高性能浮点DSP芯片TMS320C6713显著提高了嵌入式应用的性能,降低了系统设计的复杂度.介绍了该芯片的结构、特点和功能,进行了TMS320C6713最小系统的设计并阐述了PCB设计时的注意事项.     

微机数据采集系统的设计

本文介绍了１２位通用、灵活的ＡＤ５７４芯片的结构和使用方法，利用该芯片设计了通用的多路数据采集系统。     

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。     

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.     

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.     

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     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

How do children do mathematics with LOGO?

Abstract  This paper considers some results of a study designed to investigate the kinds of mathematical activity undertaken by children (aged between 8 and 11) as they learned to program in LOGO. A model of learning modes is proposed, which attempts to describe the ways in which children used and acquired understanding of the programming/mathematical concepts involved. The remainder of the paper is concerned with discussing the validity and limitations of the model, and its implications for further research and curriculum development.