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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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za
说明: 文件主要介绍了一种叫做数学形态学的方法及其应用,数学形态学多数应用在图像处理方面,现已有资料应用于信号处理领域(Paper introduces a method called mathematical morphology and its applications, most applications of mathematical morphology in image processing, data is now used in signal processing)
- 2011-01-06 13:06:48下载
- 积分:1
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Interactio_Retransmission
Interaction of Retransmission, Blacklisting, and Routing Metrics for Reliability in Sensor Network Routing powerpoint
- 2010-01-06 16:22:18下载
- 积分:1
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Seamless_handover
Seamless handover across Heterogeneous Networks - An IEEE 802.21 Centric Approach.(Seamless handover across heterogeneous N etworks-An IEEE 802.21 Centric Approach.)
- 2007-05-22 16:05:32下载
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Research-work
A Learning Theory Approach to System
Identifi cation and Stochastic Adaptive Control
- 2016-05-02 17:11:13下载
- 积分:1
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Principles.of.Power
Power System V. K. Mehta
- 2012-11-20 09:12:24下载
- 积分:1
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exgra1
求解变分不等式的两种外梯度算法对比。包括一种修正的外梯度法及其优化方法。(Solving Variational Inequality gradient algorithm for comparison of two things. Including an amendment to the outer gradient method and its optimization.)
- 2009-11-19 13:59:26下载
- 积分:1
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SIM868_RF_Design_Application Note_V1.00
SIM868_RF_Design_Application Note_V1.00.pdf
- 2018-10-29 19:53:29下载
- 积分:1
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11
说明: 导航地图数据模型研究现状与趋势(Navigation Map Data Model Status and Trends)
- 2008-10-27 16:38:10下载
- 积分:1
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cgpscyl
从GPS产业链动荡看便携式导航技术的发展——相当不错的一篇文章,希望对您有所(From the turmoil in the industry chain to see a portable GPS navigation technology for development- a fairly good article, hope you find this)
- 2010-01-28 15:57:23下载
- 积分:1