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气动布局调研
说明: 飞行器的气动布局介绍及相应气动布局的优缺点。(Introduction to the aerodynamic layout of the aircraft)
- 2020-04-06 20:17:24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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lujingguihua
CAJ格式的,遗传算法的路径规划问题,需要的可以看一下(CAJ format, genetic algorithm path planning problem, the need to look at the can)
- 2008-08-07 15:18:37下载
- 积分:1
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SerialBootSoC
Serial Flash for External Bootloader storage
- 2009-12-01 14:40:06下载
- 积分:1
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CCSDS
CCSDS建议在深空通信导航中的应用研究(CCSDS recommendations in deep space communications and navigation)
- 2013-03-12 16:38:34下载
- 积分:1
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top_tides
《浪潮之巅》,作者:吴军,很好的书,写了AT&T、IBM、苹果、英特尔、微软、思科、雅虎、惠普、摩托罗拉等IT巨人的兴衰起落,很有意思!(Summit of the " wave" , author: Wu Jun, a good book, write the rise and fall of the ups and downs of the IT giant AT & T, IBM, Apple, Intel, Microsoft, Cisco, Yahoo, Hewlett-Packard, Motorola, very interesting!)
- 2012-11-30 17:13:54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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MEMS-based-spectrometer
一种基于MEMS技术的光谱仪系统介绍及发展情况介绍。(Introduce a systematic introduction and development of MEMS-based spectrometer.)
- 2012-08-09 17:23:13下载
- 积分:1
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LiteratureReview
Literature Review on Linguistic Fuzzy Neural Models. It can be very useful for Fuzzy Nural network based application.
- 2009-10-09 00:15:42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