关于低密度奇偶校验码的生成，采用matlab编写，主要是校验矩阵的产生...

FPGA在软件无线电中的应用 FPGA in the Software Radio-FPGA in the Software Radio

The development of a data acquisition card based on USB bus is introduced in this article.It first describes the configuration and principle of this card in the part of hardware design,and then the application program and device driver in the part of software design.Data acquisition program in firmware is also discussed.Finally,this data acquisition card is tested and evaluated in a program developed by Lab Windows CVI,which shows that this car is stable and reliable

U－BOOT是嵌入式系统里面比较常用的bootloader，支持许多平台，比如ARM，PPC等。这个文章详细描述了讲U－BOOT移植到44B0平台的步骤-U-BOOT system is embedded inside the commonest Bootloader. support many platforms, such as ARM, PPC, and so on. This article describes the stresses U-BOOT transplant 44 B0 platform steps

文章提出了一种基于空间矢量的PWM 算法的全数字化变频器,简要介绍了利用tms320lf2407进行空间矢量脉宽调制的理论。-article presents a space vector PWM algorithm for the all-digital converter, briefed the use tms320lf2407 space vector PWM theory.

这是ES6461的直接驱动数字屏的,PCB和原理图ORCAD格式-this is the schematic(ORCAD) and pcb(Powerpcb) file ,ES6461 with digital panel file.

在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速，以及便于实现测量过程自动化等优点，是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计，并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门，通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率，最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题目的参数要求，而且具有了单片机的稳定性和成熟性，且控制能力强，是一种低成本，高可靠的设计方案。-In electronic technology, the frequency is one of the most basic parameters, but also with a number of electrical parameters of the measurement program, the measurement results have a very close relationship between the frequency of measurement, therefore it is even more important. Measurement of the frequency of a number of means, electronic measurement of the frequency counter with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation is an important means of measuring the frequency of one. Graduates in this design we have chosen to make use of single-chip digital frequency meter, and used in the actual production of a direct

针对传统快速k-近邻分类算法的缺陷,提出了一种基于近邻搜索的快速k-近邻分类算法―――超球搜 索法。该方法通过对特征空间的预组织,使分类在以待分样本为中心的超球内进行,有效地缩小了搜索范围。 -Rapid response to traditional k-neighbors of the defect classification algorithm, a fast search based on neighbor k-neighbor classification algorithm--- Hyperspherical search. The method of the characteristics of the pre-organization of space, so in order to be classified in the sub-sample of the super-ball as the center to carry out, effectively narrowing the scope of the search.

本文创造性的提出了Q格式运算的一种新方法-Q This creative format proposed a new method for computing

太原理工大学硕 士 学 位 论 文 摘 要 随着Internet/Intranet 建设的飞速发展,Web 服务作为当 前Internet 上最热门的一种服务,得到了广泛的应用。Web 技术 发展到今天,人们已经可以把数据库技术引入到Web 系统中。将 Web 与数据库结合起来,不仅把Web 与数据库的所有优点集中在 一起,而且充分利用了大量已有的数据库信息资源,可以使用户 在Web 浏览器上方便地检索和浏览数据库的内容,Web 数据库技 术为传统的信息系统应用模式转轨到新的应用模式提供了具体 解决方案,也为解决信息孤岛问题提供了思路。-Taiyuan University of Technology with a master"s degree thesis Abstract Internet/Intranet construction of the rapid development of Web services as the current most popular on the Internet as a service, a wide range of applications. Web technology into today, people can turn the technology into the database to the Web system. Web and Database will combine not only the Web and database together all the advantages, but also made full use of the existing large database of information resources, allowing customers to the Web browser to facilitate the retrieval and browsing the contents of the database, Web database technology to the traditional information system applications model transition to the new model of applica

优秀毕业设计，无线通信，采用的是国产新型RFM芯片，非常好用，开发简单，成本低