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[Industry research] USBLabVIEWECU DL : 0: 基于U S B和L a b V IE W的 E C U自动检测系统的设计-Based on USB and L ab V IE W the ECU automatically detects system design
Date : 2026-01-09 Size : 560kb User : 林仁飞
[Industry research] China-Mobile-Job-Package DL : 0: 中国移动通信集团公司（英文China Mobile Communications Corporation，简称China Mobile）是一家基于GSM网络（即GPRS网络）的移动通信运营商，简称中国移动，前身为中国电信移动通信局。-China Mobile Communications Corporation (English China Mobile Communications Corporation, referred to as China Mobile) is a GSM-based networks (ie GPRS network) and mobile operators, referred to as China Mobile, formerly known as China Telecom Mobile Communications Bureau.
Date : 2026-01-09 Size : 392kb User : 李浪
[Industry research] dotproject DL : 0: 　　DotProject是一个在1996年左右,由开源组织自发组织人员开发的一个开源的项目管理软件系统,基于Web,可以部署于局域网"广域网的办公环境中,客户端不需要安装任何软件,只要有IE,Firefox,Opera等浏览器即可,强大,小巧.被翻译为了大约40多种语言,应用于100多个国家,可见它的简单易用的程度. -dotProject is a volunteer supported Project Management application. There is no "company" behind this project, it is managed, maintained, developed and supported by a volunteer group and by the users themselves. For more about the product, what it does, etc please follow the links to the doc site at the top of site. The software is free to anyone who would like to download it. Day to day support is provided free by volunteers. If you would like to see the system in operation- use the Demo link in the modules list to the left top of the site. If you would like to download the package use the downloads link on the top right. Please be aware that the CVS snapshot is guaranteed to be UNSTABLE and should not be used on a production site or if you are not willing to have to do some work at the code level. If you are looking for support, to ask a question or to check to see if issues have been raised by others- use the support link at the top right to access our support forums.
Date : 2026-01-09 Size : 4.69mb User : dofare
[Industry research] biyesejitognxinxitong DL : 0: 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
Date : 2026-01-09 Size : 1.48mb User : 万利