上海热线ii试验网接入部分方案(上海贝尔有限公司) 毕业设计内参...

本文讲述了如何利用UDA１３４１进行音频信号的编解码。-This paper explains how to use UDA1341 Audio signal for the codec.

VB技术介绍电子文档-VB technology of electronic documents

ARM论文，辛苦收集来的，详细介绍了ARM系统开发，-ARM papers, hard collected detailed ARM System Development,

a general informaiton about vsworks

数据库系统课程设计-Database System Design Course

在无线通信中使用跳频技术是军事通信中最主要的抗干扰手段之一, 而如果系统中能使用合适的中心频率可以快速跟踪跳频变化的带通滤波器将可以明显改善系统的抗干扰性能。文中从实际应用出发, 比较了几种可用于实现带通滤波器快速变频的方案, 选择了简单、实用的开关电容阵改变带通滤波器中心频率的方案-The use of frequency hopping in wireless communication technology is the most important anti-jamming in military communications, one of the means, and if the system can use the appropriate center frequency can be fast-tracked changes in frequency-hopping band-pass filter will be able to significantly improve the system anti-jamming性能. This paper from the actual application, the comparison of several band-pass filter can be used to achieve the rapid conversion of the program, choose a simple, practical switched capacitor array to change the center frequency of band-pass filter program

NiosII软件设计与运行流程,帮助初学者熟悉NIOSII软件的使用和工程的创建，入门级的好资料！-NiosII software design and operation of processes to help beginners NIOSII familiar with the use of software and engineering the creation, entry-level good information!

第一章　RAID知识介绍2 1.1 RAID0：条带化2 1.2 RAID13 1.3 RAID0+13 1.4 RAID54 第二章　RAID的实现5 2.1软件RAID5 2.2硬件RAID5 第三章　RAID卡原理6 第四章　Mylex Accele352 RAID 卡设置与使用9 4.1 Mylex Accele352 RAID卡简介9 4.2 RAID卡配置方法9 4.3 RAID阵列的管理10 第五章　Adaptec3200s RAID卡13 5.1 Adaptec3200s RAID卡简介13 5.2 RAID卡配置方法13 5.3 RAID阵列的管理14 第六章 Adaptec2100s RAID卡17 6.1 Adaptec2100s RAID卡简介17 6.2 RAID卡配置方法17 6.3 操作系统安装18 6.4 RAID阵列的管理24 -first chapter RAID knowledge 1.1 introduced two slot : bands of RAID13 1.3 2 1.2 13 1.4 RAID0 RAID54 Chapter II RAID the realization 5 2.1 2.2 software RAID5 hardware RAID5 third chapter RAID card Principle 6 Chapter IV Mylex Accele352 RAID card set with the use of 9 4.1 Mylex Accele3 52 RAID card brief RAID card 9 4.2 9 4.3 Configuration management RAID arrays 5th Chapter 10 Adaptec3200s RAID cards 13 5.1 Adaptec3200s RAID card Introduction 13 RAID card 5.2 13 5.3 Configuration management RAID arrays 14 of Chapter VI Adapt ec2100s RAID card

BBC 将P2P 引入电视技术-BBC television will introduce P2P technology

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