The ZEPLS Program for Solving Characteristic Equations of Electromagnetic Structures (Computer Program Descriptions)

The program calculates the zeros of an analytic function in particular zones of the complex plane, inside the region where the function is holomorphic and single valued.     

基于并口的驱动程序开发

针对地震信号处理的要求,采用具有高动态范围的24位∑-△A／D芯片,设计了以DSP为核心的高精度数据采集系统,并且对可能影响系统动态范围的部件严格控制,充分发挥A／D的潜力,使系统达到最优性能。采用并行接口完成采集系统向上层计算机实时传输数据的功能。为此,首先介绍了基于微软操作系统的WDM驱动程序结构和开发工具,对并行接口EPP模式简略说明。重点对如何使用Driver Studio软件进行驱动程序开发作了叙述,从端口读写到上层应用程序调用,都用最核心的程序代码解释。最后,根据实际开发中遇到的问题,给出解决方法。实践证明,系统硬件完全达到地震信号处理的高精度和实时性要求。     

整数级进化型硬件¹

本文提出一种以可编程整数处理单元为进化单位的FPGA结构模型，给出了函数级硬件进化的概念，并介绍了相应的遗传算法。     

计算机硬件故障分类及诊断处理

计算机设备使用不当或意外受损,出现故障是难免的。要想快速准确的排除故障,除掌握必要的基本理论外,还需具备一定的检修方法和故障处理技巧。从故障分类入手,分析了计算机发生故障的原因,介绍了常用的维修方法和技巧。     

The Razor Search Program (Computer Program Descriptions)

The razor search program is a package of subroutines which locates the minimum of a function of several variables by the razor search method of Bandler and Macdonald.     

某雷达中心控制计算机软硬件设计

给出中心机软、硬件设计思想，程序的总体结构和主要模块结构。对编程中采取的一些关键措施作了论述。     

EMP Coupling Analysis Using the Frequency (Transfer Function) Method with the SCEPTRE Computer Program

The availability of digital computer time and scientific programming languages (such as Fortran) has, resulted in the use of the digital computer for electromagnetic pulse (EMP) coupling analyses. This report describes combining complex frequency domain analysis techniques with the SCEPTRE computer program to evaluate the time response of the current induced on a thin-wire scatterer when the scatterer has been excited by an arbitrary shaped electromagnetic pulse. The method is illustrated by performing an analysis for the current which would be induced by a fast rise time EMP (unit step) and a relatively slow rise time EMP (waveshape similar to that produced by a lightning stroke).     

计算机硬件系列课程改革新思考

本文以我校2009教学计划建立的基于C语言开展硬件编程教学的教学体系为基础,进一步淡化接口背景机,在总学时不增反减情况下,优化课程教学内容体系,建立兼顾PC、单片机和嵌入式系统的计算机硬件系列课程体系,并就如何加强课程重点、难点教学,改革教育教学方法、手段,提高教学时效比,进行了一些行之有效的改革.     

计算机硬件知识体系的结构框架研究

本文是设计科学合理教学内容的基础。以系统科学的理论与方法为指导,在充分认识计算机硬件知识体系特点和学科技术知识体系构建的基本方法的基础上,依据一般高等院校计算机科学与技术及相关专业的培养目标,研究了计算机硬件知识体系的基本组成层次,从工作原理、组成结构、编程应用和技术方法等四个方面提出了计算机硬件知识体系的结构框架,分析了计算机硬件知识体系实施建构的途径。     

一种激励函数的硬件仿真实现

现在对神经网络的研究以神经网络模型及算法的模拟实现为主,较少考虑硬件实现问题.以模拟器件为主,分析设计了BP神经网络各环节的硬件电路.介绍其中的一种Sigmoid激励函数电路实现,该电路以差分器件为主要部分,通过调整相应的参数可以调节输入电压的范围和改变激励函数的增益,并在EDA环境下仿真验证了电路的有效性.     

The Desktop Computer as a Network Participant

A desktop personal computer can be greatly extended in usefulness by attaching it to a local area network and implementing a full set of network protocols, just as one might provide for a mainframe computer. Such protocols are a set of tools that allow the desktop computer not just to access data elsewhere, but to participate in the computing milieu much more intensely. There are two challenges to this proposal. First, a personal computer may often be disconnected from the network, so it cannot track the network state and it must be able to discover and resynchronize with that state very quickly. Second, full protocol implementations have often been large and slow, two attributes that could be fatal in a small computer. This paper reports a network implementation for the IBM Personal Computer that uses several performance-oriented design techniques with wide applicability: an upcall/downcall organization that simplifies structure; implementation layers that do not always coincide with protocol specification layers; copy minimization; and tailoring of protocol implementations with knowledge of the application that will use them. The size and scale of the resulting package of programs, now in use in our laboratory for two years, is quite reasonable for a desktop computer and the techniques developed are applicable to a wider range of network protocol designs.     

The Grazer Search Program for Minimax Objectives (Computer Program Descriptions)

The grazor search program is a package of subroutines that optimizes the designable parameters of networks or systems to meet minimax objectives.     

计算机硬件故障检查与维修的规范化操作

随着计算机技术与网络技术的普及与推广,在当今社会发展中,计算机已经成为人们工作和学习中必不可少的工具。但是,在计算机的使用过程中,由于使用者的误操作或其他原因,经常会导致各类故障的发生。所以,了解和掌握计算机故障检查方法和维修措施是非常重要的。本文首先对计算机硬件故障的检查方法进行介绍,并在此基础上探讨维修的规范化操作,以此来将计算机硬件故障有效解决,促进计算机的稳定运行。     

“计算机硬件技术基础”课程教学改革

"计算机硬件技术基础"是面向非电类专业开设的计算机基础课。本文结合我校的教学经验,从课程教学的目的和特点出发,针对目前教学过程存在的问题,探讨了教学改革的方法。本文从理论教学和实践教学两方面梳理了课程改革的方向和方式,经过近几年的教学改革实践证明这些改革提高了学生的学习积极性,教学效果良好。     

The Harmonized Parabolic Synthesis Methodology for Hardware Efficient Function Generation with Full Error Control

The Harmonized Parabolic Synthesis methodology is a further development of the Parabolic Synthesis methodology for approximation of unary functions such as trigonometric functions, logarithms and the square root with moderate accuracy for ASIC implementation. These functions are extensively used in computer graphics, communication systems and many other application areas. For these high-speed applications, software solutions are not sufficient, and a hardware implementation is therefore needed. The Harmonized Parabolic Synthesis methodology has two outstanding advantages: it is parallel, thus reducing the execution time, and it is based on low complexity operations, thus being simple to implement in hardware. A difference compared to other approximation methodologies is that it is a multiplicative, and not additive, methodology. Compared to the Parabolic Synthesis methodologies it is possible to significantly enhance the performance in terms of reducing chip area, computation delay and power consumption. Furthermore, it increases the possibility to tailor the characteristics of the error, improving conditions for subsequent calculations. To evaluate the methodology, the fractional part of the logarithm is implemented and its performance is compared to the Parabolic Synthesis methodology. The comparison is made with 15-bit resolution. The design implemented using the proposed methodology performs 3× better than the Parabolic Synthesis implementation in terms of throughput, while consuming 90% less energy. The chip area is 70% smaller than for the Parabolic Synthesis methodology. In summary, the new technology further increases the advantages of Parabolic Synthesis.     

基于硬件的二阶插值单精度函数近似

最简单的初等函数实现方法是查找表，但其只有与简单算术操作相结合才可实现精度的函数近似；在介绍已有同类研究后，文章提出了一种基于二阶插值的改进查表计算结构，所需查表后的算术操作数据宽度低，不仅减少常数存储ROM面积，并且改善了系统总延迟，此固定结构可结构所有的初等函数的近似查表。     

TLMRES--The TLM Computer Program for the Analysis of Microstrip Resonators (Computer Program Descriptions)

This program, based on the TLM method of numerical analysis in three dimensions, provides the exact numerical solution for general electromagnetic-wave problems.     

一种雷达中心控制计算机的设计

本文给出了一种雷达中心控制计算机软、硬件设计思想,对软硬件的总体结构和主要模块进行了设计,对软件中一些关键指标进行了测试和计算。     

计算机硬件类课程实验教学的改革与建设

计算机硬件教学属于计算机专业教学的重要组成部分,而计算机硬件实验教学是理论知识的验证与巩固的重要环节。针对目前计算机硬件实验教学的现状,从实验教学体系、实验教学平台进行改革与探索,提出了分层次的计算机硬件优化实验教学体系,建立了一个以计算机组成原理实验为核心的开放式实验平台。促进了理论教学与实践教学紧密结合,可以适应学科发展和IT企业对高层次计算机专业人才的需求。     

一种支持硬件加速的虚拟网络功能部署模型

为解决以软件实现的虚拟网络功能(VNF)性能受限问题,软件定义网络和网络功能虚拟化(SDN/NFV)等新型网络架构引入了硬件加速资源。硬件加速资源的部署,使得VNF能够为日益增长的数据流量提供服务保障。该文针对已有研究未考虑具有高性能数据处理需求的服务链VNF部署问题,提出一种支持硬件加速的VNF部署模型。该模型基于硬件加速资源的承载特性,在保证未加速VNF到商用服务器的优化部署下,优先实现交换机中加速资源的复用,并根据网络业务的性能需求,灵活调整加速资源与VNF的映射约束。仿真实验表明,与其他典型部署方法相比,在引入相同硬件加速资源的情况下,该模型可以承载更多的业务流量,满足服务链高性能数据处理需求,有效提高了部署在网络中加速硬件的资源利用率。