ofdm-system

this code for voice detection

利用GUI制作另一个简单的多种常见天线方向图的二维和三维制图界面。适合初学者掌握GUI功能和天线基础。(A simple GUI for some common antenna direction graph with 2-dimension and 3-dimension.)

这个资料，集中系统的介绍了MATLAB在通信系统仿真中的应用，分享(This information, focus on the system introduced in the communication system MATLAB simulation, sharing)

KL距离一种分类方法，此程序是分类启动子的类别，对于运用KL距离的人有很大的作用(KLdistangce cnahelp us)

一种基于复合混沌映射的单向Hash函数构造(One-way Hash function construction based on composite chaotic map)

基于奇异值分解的人脸识别方法 梁毅雄 龚卫国 潘英俊 李伟红 刘嘉敏 张红梅 提出了一种将傅里叶变换和奇异值分解相结合的人脸自动识别方法.首先对人脸图像进行傅里叶变换,得到其具有位移不变特性的振幅谱表征.其次,从所有训练图像样本的振幅谱表征中给定标准脸并对其进行奇异值分解,求出标准特征矩阵,再将人脸的振幅谱表征投影到标准特征矩阵后得到的投影系数作为该人脸的模式特征.然后,对经典的最近邻分类器算法进行了改进,并采用模式特征之间的欧式距离作为相似性度量,从而完成对未知人脸的识别.采用ORL (Olivetti Research Laboratory)人脸库对本文提出的人脸识别方法进行验证,获得了100.00 的识别率.实验结果表明,本方法优于现有的基于奇异值分解的人脸识别方法,且对表情、姿态变换等具有一定的鲁棒性. (Face recognition based on singular value decomposition method Deliberate simultaneously Gong Weiguo Li Wei Hung Stephen Lau, Hong-Mei Zhang Ying-Jun Pan Paper, a Fourier transform and singular value decomposition of the combination of automatic face recognition. First of all, the face image by Fourier transformation, it has the same characteristics of the displacement amplitude spectra. Secondly, all training The amplitude spectrum of the sample images given in standard face representation and its singular value decomposition, find the standard characteristic matrix, then the amplitude of spectral characterization of human faces projected onto the standard characteristic matrix of projection coefficients obtained as the face of the model features . Then, the classical nearest neighbor classifier is improved, and the use of Euclidean distance between pattern features as the similarity measure, thus completing the identification of unknown human faces. using ORL (Olivetti Research La)

涉及到简单的傅里叶变换程序说明了其原理以及基本的使用方法，适合入门者(Comes to simple Fourier transform procedure describes the principle and basic use, suitable for beginners)

采用BPSK调制的UWB信号，matlab源代码(UWB BPSK signal generation)

Writing MATLAB C-MEX Code

Player fills a number from 1 to 9 into given empty space with a rule that no number is appear twice in a single row, column, and minigrid. To play a game of Sudoku, click PlayGame button and an incomplete board of Sudoku will be created in the grid box. Use CheckBoard button to check whether there is a violation in the board. To solve an incomplete Sudoku board, fill the grid box with the corresponding number and click SolveSudoku button. Remember to click ResetBoard before starting a new game or entering an incomplete board to be solved.