基于小波变换的数字图像水印算法

电力电子技术与MATLAB仿真（21世纪高等学校规划教材）(Power electronic technology in the 21st century with MATLAB simulation (high school) plan )

Vector_Control_SVPWM SPWM matlab 编程(Vector_Control_SVPWM Vector_Control_SVPWM SPWM matlab 编程)

里面包含了希尔伯特黄变换的三种方法，还有相关的文献资料说明，能够有助于理解希尔伯特黄变换。(It contains three methods of Hilbert Huang transform, and related literature, which can help to understand Hilbert Huang transform.)

是本科毕设的题目，阵列信号处理的高分辨率估计，空间目标识别，采用PM算法，一个师兄的毕设，针对EMD方法的不足,Relief计算分类权重。

一种适合入门者的EMD程序，能画出频谱图和IMF的时频图(an easy EMD program )

用SVM进行分类时，需要对原数据进行归一化处理。(When using SVM classification, the need for raw data normalized.)

主成分分析（PCA）是处理统计数据的有用工具。但它也可用于处理图像或信号。这个文件是表明它是如何工作的图像处理的领域中的演示。

用于统计任一英文文档中26个字母的统计频率，得到频率矩阵(Second, it fuses the features of the first singular value component and the second one, and then gets the complex feature vectors which reflect not only the statistic frequency but also the sequential structure of letters. In the end, the cosine similarity of texts is used to measure the similarity between the query and documents.)

The accompanying matlab code demonstrates how to separate three mixtures of three signals which have arbitrary pdfs

iterative EM MAP algorithm