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Answer-true-through-IT-students
这是一部写给在校计算机专业学生的书
如果没有看到这本书
你可能会茫然无措的度过学习阶段(This is a book written for computer major students
If you don t see this book
You may be at sea through the learning phase)
- 2013-08-05 17:28:15下载
- 积分:1
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IEEEgideonhvdc
IEEE关于HVDC接入弱交流系统的报告,对搞电力的人非常有用(IEEE report on HVDC access weak AC system ,it s useful to the people who engage in powersystem)
- 2011-06-28 20:35:12下载
- 积分:1
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DudaHartToolboxUse
Duda Hart Tool Box Use manual
- 2015-09-30 00:24:04下载
- 积分:1
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StopFireFoxUrlHistory
This document describes how to change Mozilla FireFox browser so that it does not maintain a history of the URL s [web sites] that you visit.
- 2009-02-28 21:20:44下载
- 积分:1
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inner_GRID
关于研究电力规划需求的文章,对做电力电网规划项目的人十分有用,比如电网概况,电网规划和重要电网指标分析等。(The Document is about Inner Mongolia Power Grid,which is usefull for the Needs analysis pepole,for example basic Grid,grid planning and Important index... )
- 2020-07-30 17:18:39下载
- 积分:1
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Spatial-Modulation
spaital modulation是08年开始盛行的一种空间调制技术,他相比于v-blast,mrc等方式有了长足的进步。(Spatial modulation (SM) is a recently developedtransmission technique that uses multiple antennas.)
- 2012-04-26 12:09:32下载
- 积分:1
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BigTable
BigTable cloud coumputing data storage
- 2009-09-13 13:18:18下载
- 积分:1
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工程领域中的格子波尔兹曼方法
工程领域中的格子波尔兹曼方法,很经典的书籍,内含较多的代码(Engineering fields Lattice Boltzmann Method, classic books, containing more code)
- 2020-07-04 01:00:01下载
- 积分:1
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biyesejitognxinxitong
中文摘要
正交频分复用( OFDM , Orthogonal Frequency Division
Multiplexing)是当前一种非常热门的通信技术。它即可以被看作是一种
调制技术,也可以被看作是一种复用技术。由于它具有抗多径衰落和频谱
利用率高的特点,因此被广泛应用于高速数字通信领域,比如应用于IEEE
802.11a无线局域网(WLAN)的物理层等等。
我的毕业设计的核心任务是:采用 FPGA 来实现一个基于OFDM 技术
的通信系统中的基带数据处理部分,即调制解调器。其中发射部分的调制
器包括:信道编码(Reed-Solomon 编码),交织,星座映射,FFT和插
入循环前缀等模块。我另外制作了相应的解调器,可以实现上述功能的逆
变换。
另外,我还对OFDM技术, IEEE 802.11a的标准文献,基于Simulink
的 OFDM 模型和仿真,ALTERA 公司的技术和 IP Core 的使用等方面进
行了研究。这些在文章中都有体现。
(Abstract
Orthogonal frequency division multiplexing (OFDM, Orthogonal the Frequency Division,
Multiplexing) is a very popular communication technology. It can be seen as a
Modulation technique can also be seen as a multiplexing technique. Because of its resistance to multipath fading and spectrum
High utilization characteristics, and is widely used in high-speed digital communications, such as used in IEEE
802.11a wireless LAN (WLAN) physical layer.
The core mission of my graduation project: FPGA to implement a technology based on OFDM
Communication systems in baseband data processing part, ie the modem. These emission part of the modulation
Includes: channel coding (Reed-Solomon coding), interleaving, constellation mapping, FFT and interpolation
Into the cyclic prefix modules. I also produced a corresponding demodulator can achieve the inverse of the above functions
Transformation.
In addition, OFDM technology, the IEEE 802.11a standard literature, based on Simulink
)
- 2012-05-20 21:58:18下载
- 积分:1
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Aurora
使用开源软件Aurora做的交通仿真研究(Using Aurora Road Network Modeler for Active Traffic Management)
- 2011-02-16 15:36:03下载
- 积分:1