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书籍 Transmission Techniques for 4G Systems
Fourth Generation (4G) wireless communication systems aim to allow peak data
rates in the range of 1 Gbps for nomadic access and 100 Mbps for vehicular mobil-
ity. 4G aims to support current and emergent multimedia services, such as mobile
TV, social networks and gaming, high-definition television a ...
书籍 Electromagnetic+Transients+in+Power+Cables
For more than a century, overhead lines have been the most commonly used
technology for transmitting electrical energy at all voltage levels, especially on the
highest levels. However, in recent years, an increase in both the number and length
of HVAC cables in the transmission networks of different ...
书籍 Innovative Testing and Measurement Solutions
A revolution in power industries, including generation, transmission and distribution, driven by
environmental and economic considerations, is taking place all over the world. The smart grid allows for
integration of diverse generation and storage options, reduced losses, improved efficiencies, incr ...
技术资料 pcie-2.0-总线规范
This PCI Express Base Specification is provided “as is” with no warranties whatsoever, includingany warranty of merchantability, noninfringement, fitness for any particular purpose, or anywarranty otherwise arising out of any proposal, specification, or sample. PCI-SIG disclaims allliability for i ...
技术资料 艾默生高准RS485通讯
This document lists Modbus® mapping assignments for Micro Motion® flowmeter components that
support Modbus protocol.
Micro Motion flowmeter components that support Modbus protocol include:
• Series 1000 and 2000 transmitters, all versions
• Core processor stand-alone (MVDSolo or MVD Direct Conn ...
技术资料 win7 串口调试小工具
win7串口调试工具，它能用来修改串口波特率、校验位、数据位和串口停止位，还能设置接受区和发送区，并能增加串口的自动识别功能，让串口号的限制不再困扰。而且它不止能应用在win7系统上，win all 它都能应用。
技术资料 Pads转PROTEL的方法
第一步：用PowerPCB打开文件，选择Export 导出，保存类型选择"ASCⅡ Files（*.asc）"，按保存按钮，
弹出"ASCⅡ Output"对话框，在导出格式（Format）中选择"PowerPCB V3.5"，然后Select All，但是倒数
第五个的Rules 不要选择，然后在"Expand Attributes"标签中将Parts 和Nets都选上，确定即可导出.ASC文件 ...
模拟电子 电感和磁珠的区别及应用场合和作用
磁珠由氧磁体组成，电感由磁心和线圈组成，磁珠把交流信号转化为热能，电感把交流存储起来，缓慢的释放出去。
磁珠对高频信号才有较大阻碍作用，一般规格有100欧/100mMHZ ,它在低频时电阻比电感小得多。电感的等效电阻可有Z=2X3.14xf 来求得。
铁氧体磁珠 (Ferrite Bead) 是目前应用发展很快的一种抗干扰元件，廉价、易用， ...
DSP编程 Dsp281x外设资料
This overview guide describes all the peripherals available for TMS320x28xx and TMS320x28xxx devices.Section 2 shows the peripherals used by each device. Section 3 provides descriptions of the peripherals.You can download the peripheral guide by clicking on the literature number, which is linked t ...
教程资料 ref sdr sdram vhdl代码
ref-sdr-sdram-vhdl代码
SDR SDRAM Controller v1.1 readme.txt
This readme file for the SDR SDRAM Controller includes information that was not
incorporated into the SDR SDRAM Controller White Paper v1.1.
The PLL is targeted at APEX(TM) devices. Please regenerate for your chosen architecture.
...