一种分布式DIS数据库的设计

该文通过分析DIS数据管理的特点和实时性要求，论述了分布式数据库在DIS中应用的必要性，并结合水中目标对抗数据库建设中的实际工作，提出了一种分布式DIS数据库的设计和实现方法。     

实现基于RTCP协议的参考图象法的探讨

目前视频图象在 IP分组网中的传输正被日益广泛地应用 (如 :视频电话、视频会议 ) .但是 ,由于 IP分组网固有的特点 ,致使 IP分组包丢失的现象不可避免 ,并极大地影响了视频传输的服务质量 .由于参考图象选择法RPS(Reference Picture Selection)是一种较好的视频图象差错复原的方法 ,因此 ,为了改善因分组包丢失而对视频传输带来的质量下降问题 ,利用 RTCP协议提供反馈信息和利用参考图象选择法进行视频图象复原 ,实现了一种在 IP分组网中进行视频传输的差错控制机制 .实践证明 ,通过这种方法不仅可减小因分组包丢失而对视频图象信息带来的损害 ,而且可提高视频图象的传输质量 ,此方法适用于基于分组网的视频传输系统 .     

信息家电中实时智能技术的应用研究

随着网络和信息技术的迅速发展，基于信息家电(IA)的家庭网络将得到大规模的推广。信息家电的核心是芯片和实时智能软件。在讨论信息家电的特点和功能的基础上，提出一种适于建立IA软件环境的Agen结构模型，并对其进行了分析讨论。     

WindML事件驱动机制分析

在实时嵌入式操作系统中，WxWorks以其高可靠性、高实时性、高性能特性而著称。该文在概述它的图形用户接口WindML基础上，着重分析了WindML的事件驱动机制。该机制是一个基于C／S结构的、硬设备集中监控的、高效事件分发的机制，它充分体现了分层模块化、任务队列化、低开销强实时性的系统设计思想。     

Windows系统环境下的实时性控制

探讨了windows系统环境下的几种实时控制方案及它们的优缺点，给出了一种借助工业控制机和高速单片机系统来控制的更为有效的实时控制方法。     

基于Internet的房地产投资决策分析系统

针对我国房地产开发活动的特点,为房地产投资者开发了一个投资决策分析系统。系统采用C/S与B/S模式相结合的总体架构。详细讨论了该系统的功能设计,探讨了系统实施过程中模型库的设计、工作流过程模型的设计及系统的安全性等关键技术。     

UML在开发工业远程监控系统中的应用

采用面向对象分析设计语言(UML)和面向对象语言(MSVC++)相结合,在整个软件生命周期均采用面向对象方法和工具实现工业远程实时监控系统,得到了结构良好、高内聚、低耦合、容易理解、易于扩展、维护的系统。     

Microprocessor controlled three-way catalyst efficiency monitoring system

The present paper describes a new design for a microcontrolled three-way catalyst efficiency monitoring system. The system is based on the Motorola 68HC11e2 microprocessor and utilizes the differential signal from a pair of thermocouples installed at the catalyst outlet and inlet sections. This signal is processed in real time using an appropriate statistical algorithm and the corresponding results are compared to experimentally determined limiting values to assess the current state of the catalyst efficiency during driving conditions. The result of this comparison is presented on an LCD display as an A, B, C, or FAIL catalyst condition signal. The system can be readily installed and can operate on new and used cars provided that the type of catalyst used has been experimentally tested to provide the necessary limiting values that characterize its relative levels of efficiency. It can also be reprogrammed and calibrated via a RS232C serial interface.     

BOAR: an advanced HW/SW coemulation environment for DSP system development

The BOAR emulation system is targeted to hardware/software (HW/SW) codevelopment of advanced embedded DSP and telecom systems. The challenge of the BOAR system is efficient customization of programmable hardware, and dedicated partitioning routine to target applications and structures, which allows quite high overall system performance. The system allows multiple configurations for communication between processors and field programmable gate arrays (FPGAs) making the BOAR system an efficient tool for real-time HW/SW coverification. The reprogrammable hardware of the emulation tool is based on four Xilinx 4000-series devices, two Texas TMS320C50 signal processors and one Motorola MC68302 microcontroller. With current devices the BOAR hardware provides approximately 40–70 kgates of logic capacity in DSP applications. The emulation capacity can be expanded by connecting several similar boards in chain. The system has also a versatile internal reprogrammable test environment for test bench development, performance evaluations and design debugging. The logic development environment is based on the Synopsys synthesis tools and an automatic design management software, which performs resource mapping and performance-driven design partitioning between FPGAs. The emulation hardware is currently connected to logic and software development environments via an RS-232C bus. The BOAR emulation system has been found a very efficient platform for real-life prototyping of different types of DSP algorithms and systems, and validating correct functionality of a VHDL macro library.     

一种光照模型的简化算法

本文给出了在微机上实现真实感图形显示的一种简化算法，提出一种对该算法所带来的误差进行补偿的方法．