Biometrics-Based-Authentication-Systems

单相功率因数校正PFC的原理和方法，通过对Boost型滞环控制的DC-DC变换器采用Matlab进行仿真，获得了最后校正的功率因数结果，说明这种PFC方案的能获得良好的效果，适用于多种场合。(The principle and method of single-phase PFC are introduced. By simulating the Boost hysteresis-controlled DC-DC converter with MATLAB, the final corrected PFC results are obtained. It shows that this PFC scheme can achieve good results and is suitable for many occasions.)

采用C#语言，一个net积分消费系统,具有积分系统的完整功能(The C# language, a net integral consumption system, has the integral function of the integral system.)

VB使用SHEmptyRecycleBin方法， 依赖于shell32.dll动态链接库清空回收站，点击窗口中的按钮即可一键清空回收站。本源码主要是熟悉SHEmptyRecycleBin函数的使用，这个函数不只有清空回收站的功能，还可以统计查询回收站中的文件数量，占用字节大小等。 (VB using the SHEmptyRecycleBin method, relies on the dynamic link library shell32.dll empty the recycle bin, click on the window button quick clear recycling station. The main source is the use of familiar with the SHEmptyRecycleBin function, this function is not only the empty recycle bin function, can also query statistics the number of files in the recycle bin, occupy the byte size etc.. )

VC++ 6.0实现简易的广告效果统计程序，是一个Internet点击统计器，用以统计任意网址被用户单击了多少次，由此可扩展成为一个广告点击次数的统计程序，同时使用本地IP地址进行读取，支持重建代理列表，代码地址可自定义，可设置最大连接数为8，可同时记录8个网址。运行前为避免出错，请输入计数器图片的URL地址以供调用。

通用的游戏自动喊话工具~易语言源码，支持大部分网游！-General game automatically call ~ easy language source tools to support the majority of online games!

说明：  可以使用此插件访问Google Account(Google Account , Google Search,)

用户和基站的泊松分布，可以设置基站的覆盖半径。(Poisson Distribution of Users and Base Stations)

说明：  control biometrico zk

说明：  协作系统中通过多中继选择策略用以提高系统性能。(the scheme of choose for the multiple relay to improve the performanc of the network.)

一、 实验目的 1. 掌握典型序列的产生方法。 2. 掌握DFT的实现方法，利用DFT对信号进行频域分析。 3. 熟悉连续信号经采样前后频谱的变化，加深对时域采样定理的理解。 4. 分别利用卷积和DFT分析信号及系统的时域和频域特性，验证时域卷积定理。 二、实验环境 1． Windows2000操作系统 2． MATLAB6.0(First, the purpose of the experiment 1. master the method of producing typical sequence. 2. master the realization method of DFT and use DFT to analyze the signal in frequency domain. 3. familiar with the change of the frequency spectrum before and after the continuous signal sampling, deepen the understanding of the time domain sampling theorem. 4. the time domain and frequency domain characteristics of the convolution and DFT analysis signals and systems are used to verify the time domain convolution theorem. Two. Experimental environment 1. Windows2000 operating system 2. MATLAB6.0)