介绍发动机ecu与液力变矩器的配合控制软件设计方案，开发软件VB...

摘要:基于通信技术的列车运行控制系统(CBTC)是铁路信号的发展方向，交频分复用 OFDM)是一种无线环境下的高速传输技术，它对高速列车控制信息传输中卞要受到的由于多 径传播引起的快衰落所产生的影响有很强的抵抗能力.本文首先介绍了OFDM技术的发展和 基本原理，然后在计算机上用M atlal〕对其性能进行了仿真，仿真中将OFDM与传统的单载波 调制方式―i1，交振幅调制( 1frQAM)对抗多径十扰的性能进行了比较，最后分析了一者的仿真结果. -Abstract: Based on the communication technology train operation control system (CBTC) is a railway signal direction for the development of cross-frequency division multiplexing OFDM) is a wireless environment of high-speed transmission technology, its high-speed train control information transmission Bian be subject to the Due to the spread of multi-path fast fading caused by the impact of a strong resistance to diseases. This paper first introduces the OFDM technology development and the basic principles, and then on the computer〕 M atlal use its performance simulation will OFDM with the traditional single-carrier modulation-i1, cross-amplitude modulation (1frQAM) against multi-path interference of the 10 properties were compared with a final analysis of

太原理工大学硕 士 学 位 论 文 摘 要 网络缓存（Web Caching）把经常访问的网络对象在访问开 销较少的网络节点上存一个副本，当用户再次访问这些对象时， 可以直接从这个开销较少的网络节点上得到满足。从而在有限 的带宽内，达到缩短用户等待时间、提高网络性能和网络可扩 展性的目的，对于提高Internet 访问效率具有重要意义。-Taiyuan University of Technology master"s degree thesis Abstract network cache (Web Caching) frequent visits to the network to visit the object of the less expensive network nodes onto a copy, when users visit these objects, directly from the overhead less network nodes to be met. Thus the limited bandwidth, which can shorten the waiting time for customers, improve network performance and network scalability for the purpose of improving the efficiency of Internet access is of vital significance.

GPS时差数据卡尔曼滤波器 的设计与应用-The time difference between GPS data Kalman filter design and application of

本文介绍了一种控制普通阀门的阀门控制器的设计方案，该阀门控制器带有工业现场总线PROFIBUS－DP 的接口，可以实现阀门的远程控制和网络控制。本文主要的着力点为介绍利用PROFIBUS－DP 专用芯片SPC3 开发PROFIBUS－DP 设备中需要注意的一些问题，包括硬件接口设计，有关PROFIBUS－DP 规范标准的一些设计要点，以及利用PROFIBUS－DP 诊断功能的方法。本文对设计其它Profibus DP从站节点有很好的参考价值!-This paper presents a general valve control valve controller design program The valve controller with industrial PROFIBUS-DP interface. The valve can be achieved remote control and network control. This paper mainly focus on the use of PROFIBUS-DP SPC3 ASIC development PROFIB U.S.-DP equipment necessary to pay attention to a number of issues, including the hardware interface design, The PROFIBUS-DP standards in a number of design features, and the use PROFIBUS-DP diagnostic function method. In this paper, the design of other Profibus DP slave nodes are of value!

本课题设计的是一套计算机控制的温度、湿度实时监测与报警系统，可应用于多种需要采集温湿度数据的场合，本文完成了整个系统的软硬件设计。-design of this project is a computer-controlled temperature, humidity and real-time monitoring and alarm system, can be applied to various needs of temperature and humidity data acquisition occasions, we completed the whole system hardware and software design.

介绍了光电流互感器和实现电流互感器的通讯接口的设计方案。-introduces the current transformer and current transformer to achieve the communication interface design.

经典计算机体系结构RISC8的源代码（Verilog），包括CPU、内存、寄存器等的实现-classic computer architecture RISC8 the source code (Verilog), including CPU, memory, such as the realization Register

记录实验中LM393的波形，及LM393芯片的一些原理调试图片。-Record experiment waveform LM393, LM393 chip and debug some of the principle of picture.

相应的软件开发平台与硬件工具，并对ATmega128一些硬件接口在实际应用中的软/硬设计方法与技给出深入和细致的使用指南。 ... 转换器（8535）的使用，异、同步串口通信，软件DAA等；有的属于对传统程序的优化，如对简易键盘LED显示管理，精确定时及-corresponding software development platform and hardware tools, and hardware interface ATmega128 some of the practical application of software/hardware design and technology is in-depth and detailed guidelines for their use. ... Converter (8535), the use of different, synchronous serial communications, software DAA; Some belong to the traditional procedure of optimization, such as the simple keyboard LED display management, precision timing and

昆明公众信息服务系统方案建议书 (好格式) 毕业设计内参-Kunming public information service system program proposals (good format) Graduation INCOMPATIBLE