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Frequency
频偏同步,可以实现大频偏下的频偏估计,精度高,范围广!(Frequency offset synchronization can be achieved under large frequency offset offset estimation, high accuracy and wide!)
- 2010-03-15 01:31:44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
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Information-Storage-and--Management
EMC信息存储与管理 作 者:(美国)萨曼达 人民邮电出版社(EMC information storage and management of: (U.S.) Saman Da People' s Posts and Telecommunications Press)
- 2013-01-17 20:34:04下载
- 积分:1
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enhancedDEEC
enhanced DEEC matlab code for WSN
- 2017-05-31 06:56:30下载
- 积分:1
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Wireless-coverage-market-
无线覆盖市场月度监测报告、行业发展报告文件(monthly monitoring report)
- 2012-03-05 10:27:17下载
- 积分:1
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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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3-(2)
电池热失控热安全仿真研究实验报告SCI henhaode a (Battery thermal runaway thermal safety simulation research lab reports SCI)
- 2017-04-03 19:51:52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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Worse-is-Better.pdf
本文通过对LISP语言发展的研究,总结出计算机方面的设计理念。并不是完美的才是最好的,有时候愚蠢的简单的更好。(Based on the LISP language development research, summed up the computer aspects of the design philosophy. Not perfect is the best, and sometimes stupid simple better.)
- 2013-10-29 15:19:04下载
- 积分:1
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How_To_Write_A_PhD_Thesis_WoeWolf_UNSW
article on how to write a thesis
- 2009-04-28 00:13:22下载
- 积分:1