picmaterils

matlab数字水印程序m文件程序，用的是小波变换中的dwt方法，并且把小波变换分成了四个子带，选择的LL子带。svd算法与dwt相结合，加密方法是混沌加密。与我刚才上传的dwt_svd_GUI.rar是一个程序，一个是gui的，一个是m文件。(m digital watermarking matlab program documentation procedures, using a wavelet transform method in the dwt and the wavelet transform is divided into four sub-band, choose the LL sub-band. svd algorithm with a combination of dwt, encryption method is chaotic encryption. I have just uploaded a dwt_svd_GUI.rar procedures, one is the gui, one m file.)

说明：  matlab中文帮助文档，方便读者理解阅读matlab，一般的安装软件中的帮助文档是英文的，使用不方便(matlab Chinese help docment, support read convience and help you understand clearly )

多分类支持向量机实现方法的分析比较：一对一、一对多和DAG的对比，比较专业，(more SVM method of comparison : one-to-one, one-to-many and DAG contrast, more professional-huh)

MATLAB GUI设计学习手记（第二版）源程序第10章 俄罗斯方块编译文件(MATLAB GUI design learning Hearts (second edition) source 10 Chapter Tetris compiled files)

针对传统教学中出现的问题,分析在通信原理教学和实验中采用Matlab软件的可行性,提出在通信原理的课堂教学和实验教学中采用Matlab软件,不但能提高教学的有效性,而且可以加深学生对理论知识的理解和感性认识。 更多还原 (The traditional teaching of the problems, analyze the feasibility of using Matlab software teaching in communication theory and experiment, the proposed use of Matlab software in the classroom and laboratory teaching communication theory, not only can improve the effectiveness of teaching and students can deepen the understanding of theoretical knowledge and perceptions. More Restore)

golomb compression ratio and entropy

画贝塞尔（besselj）函数和第二类变型贝塞尔（besselk）函数图像(the images of besselj and besselk function )

系统辨识导论课程学习资料，教你学习辨识基础知识(Introduction to System Identification curriculum learning materials to teach you the basics of learning to identify)

用matlab编程实现的有向图图形图像的原代码实现，请各位指点(Using matlab programming has realized the graphic image of the original code, please give pointers)

y3k=fft(u,(m+n-2)/4) i=1:(m+n-2)/4 subplot(5,2,9) stem(i,u) title( 滤波后上采样 ) k=1:(m+n-2)/4 subplot(5,2,10) stem(k,y3k) title( 上采样频谱 ) xlabel( k ) ylabel( y3k ) (y3k = fft (u, (m+ n-2)/4) i = 1: (m+ n-2)/4 subplot (5,2,9) stem (i, u) title (after filtering the sample) k = 1: (m+ n-2)/4 subplot (5,2,10) stem (k, y3k) title (on the sample spectrum) xlabel (k) ylabel (y3k))