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User-Experience-Case-Study
互联网产品用户体验案例分析,帮助提高用户体验。(Internet product user experience case studies to help improve the user experience.)
- 2013-08-20 15:57:34下载
- 积分:1
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程序
求解二维雷诺方程,计算油膜压力分布,针对润滑密封的编程求解(Solve the two-dimensional Reynolds equation, calculate the pressure distribution of oil film, and solve the programming of lubrication seal)
- 2018-09-27 22:05:00下载
- 积分:1
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Cloud-computing--architecture-.ppt
云计算技术与架构前瞻
云计算的市场前景
云计算的现状
云计算的技术、架构发展趋势(Cloud computing technology, the status of the market prospects for technology and architecture forward-looking cloud computing cloud computing cloud computing architecture development trends)
- 2012-08-19 20:00:37下载
- 积分:1
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romp
说明: 图像处理,压缩感知中ROMP的代码实现。(Image processing, compression-aware in the ROMP of code to achieve.)
- 2010-03-21 17:19:20下载
- 积分:1
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m2m
m2m communication sysem
- 2017-12-20 22:19:56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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smart grid
说明: A document file talking bout smart grid
- 2020-04-26 05:35:15下载
- 积分:1
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The effect of the TiO2
说明: 关于TiO2修饰表面等离子体激元的COMSOL软件仿真的文章(COMSOL Software Simulation of Surface Plasmon Politons Modified by Titanium Dioxide)
- 2020-06-16 19:40:01下载
- 积分:1
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1
说明: 一个开店必备文档,里面有全国的商品批发资料,很全的。(Must document a shop, which has the country' s wholesale information is complete.)
- 2011-07-09 14:16:47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