liziqun

说明：  ：针对MP3 编码方式和帧结构进行分析，利用帧中的比例因子提出了一种压缩域水印算法。算法通过引入帧变化分析步 骤，很好地实现了水印的自适应嵌入。对于不同的系统要求，还可以通过修改门限信噪比的值SNRlim按需进行水印嵌入，使算法 具有更大灵活性。同时在牺牲一定的嵌入空间前提下，实现了水印信息的自同步。实验表明，对于不同风格的音乐，该水印算法 具有很好的不可听性。(In this paper，the encoding method and the frame structure of MP3 are expounded in detail，a watermark algorithm is proposed based on the scale factor in MP3 frame.By introducing the step of frame altering analysis，the algorithm can realize that watermarks is embedded adaptively.By modifying threshold SNRlim（the ratio of signal to noise），the algorithm can meet different requirements of some system，that is what enable the algorithm to have a bigger flexibility.Based on expense of some embedding positions，the watermark can be embedded with self-synchronization.The experiment results show this algorithm can get a good audio effect with various types of audio.)

这是一个matlab图像运算包，多幅图像的数学运算，包括图像的代数运算、图像的逻辑运算、图像的块和邻域操作、图像几何运算等(This is a matlab image computing package, multiple images of mathematics, including algebra images, images of logical operations, the image of the block and neighborhood operations such as geometric operations)

说明：  noma,ofdm,sim，采样特性研究，性能比较(noma,ofdm,sim,Research on sampling characteristics and performance comparison)

matlab实现的avi读入,可以运行(matlab realize read into the avi, you can run)

It is a speckle noise filter using median-average-mean filter. it will remove the speckle noise from images this filter is based on a proposed technique in a paper

amica-modified ica algorithm

说明：  该算法为专家PID控制原代码 用MATlab开发，能够管直接运行(The expert PID control algorithm for the original code using Matlab development, to pipe directly to run)

说明：  用matlab 写的将avi电影转化成BMP图像序列，调试通过的(Avi movie to convert BMP image sequences)

读取微波辐射计数据，并将微波辐射计相对湿度转化为水汽混合比(Reading the microwave radiometer data and translating relative humidity data to water vapor mixing ratio)

在多个特征中选取敏感特征，可以降低特征集的维数，提高分类准确率(Select the sensitive feature in multiple characteristics, can reduce the dimension of feature set, improving the classification accuracy )