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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 )

This document describes how to change Mozilla FireFox browser so that it does not maintain a history of the URL s [web sites] that you visit.

CCSDS建议在深空通信导航中的应用研究(CCSDS recommendations in deep space communications and navigation)

memetic algorthium in the distributed generation enivorment

心电监护仪行业“十二五”规划分析与投资前景预测研究报告(189021).pdf(ECG industry " 12th Five-Year Plan and investment prospects forecast research report (189 021). Pdf)

This document explains the NEFCLASS. NEFCLASS is a Neural Fuzzy Classification model. Mainly used for the classification of data.

Async Motor Vector Control

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)

针对当前负荷建模研究和工程应用中存在的问题，研究了负荷特性的分类综合方法(For the current load modeling research and engineering application problems, the classification of the load characteristics of an integrated approach)

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)