enhancement

matlab动画，很有用的，希望能对初学者有所帮助，欢迎下载(matlab animation, very useful, hoping to help beginners, are welcome to download)

说明：  用matlab模拟仿真锁相环，一个很好的程序，希望能帮到你(PLL with matlab simulation, a very good program, hope you can help)

说明：  sift提取特征点、描述子、最后进行匹配。(sift ：feature point，descriptor， matching。)

LSB Audio Algorithm.. Audio Stegnography code

自己学习svm，编写的几个svm实例代码(Their own learning svm, svm example code written in several)

对非平稳信号进行分段、截取，再对处理过后的短时信号做短时傅里叶变换，分析其频谱特性，并找到各个时间节点的频率特性，以便分析不同事件段内的声音特征。(The nonstationary signals are segmented, and then the interception, the short-time signal after processing the short-time Fourier transform, the analysis of the spectrum characteristics and frequency characteristics and find the different time node, in order to analyze the acoustic characteristics of different event period.)

Ultra wideband (UWB) matlab code

学习用MATLAB进行数字信号处理的源码(The source of learning to use MATLAB for digital signal processing )

表情图像的滤波处理,已经运行过能用，但是使用时，记得改一下路径。(biao qing picture de lv bo chu li,yi jing yu xing guo ,ke yi yong.bu guo ji de yao gai yi xia lu jing.)

伪魏格勒分布源代码.适合于非稳态的时频联合分析,可直接用于MATLAB编程,无解压密码.(pseudo-source code distribution. Suited to the non-steady-state joint time-frequency analysis can be used directly in MATLAB programming, without extracting passwords.)