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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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Phase-Migration
关于地震偏移方法中相移法的详细描述，对于初学者很有帮助。(Migration of seismic data by phase shift)
- 2014-05-03 11:01:19下载
- 积分：1
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freescale-sensor
freescale加速度传感器,芯杨代理资料简介.(freescale acceleration sensor, the core Yang agency brief.)
- 2011-05-07 10:58:24下载
- 积分：1
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Leader
IT学生解惑真经，你也可能遇到这些问题，关键是如何解决，人生需要引导(IT Student FAQ Scriptures, you may also encounter these problems, the key is how to solve, need guidance in life)
- 2010-12-30 18:56:38下载
- 积分：1
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Effect-of-standardized-resource-
本文是研究教学资源标准化建设的相关研究,值得大家学习研究！(Effect of standardized resource construction on computer technologybased teaching results)
- 2011-05-11 10:19:32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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Corporate.Finance.-.Demystified
Corporate finance is the study of the flow of funds into and out of organizations and
the decisions affecting those flows, such as which projects a firm should invest in,
and how they should go about raising the money to do so.
This book is meant to be a plain-spoken introduction to the basic concepts of
corporate finance one, which is suitable for use either as a supplement to a traditional,
introductory college text or as a stand-alone text for students or practitioners who are
interested in a more practical approach to the topic.
- 2012-12-05 17:31:30下载
- 积分：1
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Pivot-Point-Break-Strategy
光大证券--金融工程-股指期货量化交易策略研究：枢轴突破策略(Everbright Securities- financial engineering- Stock index futures quantify Trading Strategies: Pivot breakthrough strategy)
- 2012-06-13 17:04:01下载
- 积分：1
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tgh
itroduce tgh sensors and config it
- 2016-10-11 16:44:35下载
- 积分：1
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云计算战略思考
互联网公司通过改良传统中间件或改进设计架构使其具备分布式能力，同时使用了新兴的采用分布式思路设计的大数据中间件等方案，让应用系统具备了支撑弹性扩展、高并发、海量数据、高可靠业务的能力，并大大缩短业务的上线和更新周期。(Strategic thinking of cloud computing)
- 2017-11-17 21:36:40下载
- 积分：1
