Trace Width Calculator

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根据云南航天提供的平面图及应用要求，云南航天网络系统具成必需达到以下要求： 1．实现办公信息管理、局部办公本身办公自动化 作为现代化的办公信息管理，大楼内部实现办公自动化及其他管理关键性应用，必须依靠先进的计算机网络技术，综合布线系统是一套基本的布线网络，为计算机网络的应用提供必要的基础。 2．实现油库域网与外部网络的连接 云南航天局域网是以综合布线系统为传输介质的。要实现云南航天局域网与外部网络的连接，也必须通过综合布线系统。-Yunnan space under the floor plan and application requirements, Yunnan space into a network system is necessary to achieve the following requirements : 1. Achieving information management office, local office automation office itself as a modern office information management, internal realization of the building and other office automation management of critical applications, we must rely on advanced computer network technology, integrated wiring system is the basic set of network cabling for computer networks should be used to provide the necessary infrastructure. 2. To achieve the depot area network and external network connections Yunnan space is an integrated LAN cabling systems for the transmission medium. To achieve Yunnan with the outside space LAN network connectio

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

关于sine函数的生成 生成的sine函数是32X48的-sine function on the formation of generating sine function is the 32X48

这是一个介绍PCI硬件底层驱动程序的编写方法文档。介绍了一些底层驱动函数的使用方法-This is a PCI hardware on the bottom of the Driver compilation of documents. On the bottom of some drivers use the function

PCI9054数据资料完整版，对本地总线的各种模式有详细叙述。-PCI9054 full version of data on the local bus models are described in detail.

网上邮政项目文档,包括业务流程,后台设计,系统测试，项目总结等内容。很好的文档-Post online project documentation, including business processes, background design, system testing, the project summary information. Good documentation

matlab 雷达系统建模 雷达系统设计与仿真-matlab radar system modeling and simulation of radar system design

设计一个语音解说系统，并且带有源代码和原理图及pcb图-Design a voice guide system, and with the source code and schematic and pcb diagram