模拟连连看看的程序源代码。 可运行的。

用户可选择不同权限进入系统。当以管理员权限进入系统时，可进行相应的成绩添加，查询，删除，修改，用户添加删除等功能，当以学生权限进入系统时，则只能进行成绩查询和密码修改等功能-Users can choose different access permissions. When access to the system administrator can add to the corresponding results, query, delete, modify, delete users and other functions, when the rights of students to enter the system, the results can only query and modify features such as password

几篇非常好的雾天图像增强的文章，希望对大家有帮助-Several very good articles fog image enhancement, in the hope we have helped

本文利用核心芯片TDA5051A，采用ASK（幅度键控）调制技术，建立电力线通信系统，实现数字信号在电力线上进行传输。 关键词:电力线通信 TDA5051A 调制解调器 -In this paper, the core chip TDA5051A, using ASK (amplitude shift keying) modulation technology, the establishment of power line communication systems, digital signal transmission in the power line. Keywords: PLC modem TDA5051A

文章介绍了迦罗瓦域中的运算如何在matlab中实现，讲解的非常详细，并有实例说明，简单易懂，不过是英文版的，英语水平不好的话看起来可能吃力些。

ARM应用系统开发详解--S3C4510B的系统设计-ARM Application Development System Design Detailed S3C4510B

关于C++的一个PPT教程C++语言概述，包括介绍 2.2 基本数据类型和表达式 2.3 数据的输入与输出 2.4 算法的基本控制结构 2.5 自定义数据类型 -on a PPT C C language tutorial overview Introduction 2.2 include basic data types and expressions 2.3 data input and output 2.4 algorithm basic control structure 2.5-defined data types, etc.

三维图形的旋转 三维图形的旋转-rotating 3D graphics rotating 3D graphics r otating 3D graphics rotation

TCPIP 体系结构与特点的相关资料,欢迎大家下载-TCPIP Architecture and features of the relevant information, please download the U.S.

PC104总线规范v2_5.pdf,very good~-PC104 bus specification v2_5.pdf, very good ~

采样率小于一个连续时间信号最大频率的2倍时就叫undersampling，欠采样，根据抽样定理，当fs>=2fmax，也就是oversampling，过采样时，数字信号才能重建成原来的模拟信号，欠采样重建会发生混叠-Sampling rate of a continuous-time signal is less than the maximum frequency of 2 times is called undersampling, bandpass sampling, according to sampling theorem, when fs