PCA

人体三维运动特征提取和对其动作行为检索，有助于大家对其深刻的了解(The human body 3 d motion feature extraction and retrieval to its behavior Help you for its deep understanding)

semivariogram structure function ,it is about 2D semivariogram.

基于GM 模型和Hilbert 空间填充曲线的图象压缩方法(Image Compression Method Based on GM and the Hilbert space filling curve)

在做优化的时候，起初选择了GA算法，但是GA的不稳定性（或者陷入局部最优）实在让人抓狂，前后两次的结果相差竟然有时候能达到30 以上，当时由于时间的原因，我只好选择了优化1000次，然后以其中的最小值最为最佳方案。虽然问题也算解决了，但是从学术上将，这种奔方法是让人很尴尬的。所以，我从网上下载了一个GA－PSO算法，试着利用GA和PSO组合的策略进行优化，结果算法很问题，效率和不错。我下载原始算法，有一个问题就是它是针对所有的设计变量上下限都是一样的，所以我对程序进行了修改与改进，现在可以处理上下限不一致的问题，同时fix了一些bug。现在把修改后的程序和大家分享一下，希望能对您有用.注意myfit需要用自己的函数，否则出错，因为我的myfit程序在调用过程中，需要使用matlab的Kriging工具箱 (a optimization method combining GA and PSO)

使用matlab工具生成BPSK信号。模拟GPS中L1信号。(Use matlab tool to generate BPSK signal. Simulate the GPS L1 signal.)

语音信号去噪，通过短时傅里叶变换、维纳滤波(Speech Signal Denoising via short-time Fourier transform, Wiener filter)

y=d2wavelet(x,Fs,level) does the 2nd order Daubechies Wavelet Transform of signal x with a sampling frequency Fs and the DWT is decomposition is done upto a level It returns the matrix of all decompositions and the final approximations. Instead of using the matlab s inbuilt DWT function, this file explains the algorithm for DWT. Mostly useful for learning & academic purposes. For other wavelets, the filter values alone can be changed or WFILTERS can be used. The function basically is for Condition Monitoring of rotating equipments by vibration based bearing fault diagnosis by the author. Example: clear all t=[0:0.0003:8*pi] x=sin(5000*t)+sin(1000*t) x=x(1:2^16) level=5 Fs=1/0.003 d2wavelet(x,Fs,level) Thanks for Downloading. Don t forget to rate or comment.

用拉格朗日乘子法求解约束最优化问题，很好的实例程序。(Lagrange multiplier method for solving constrained optimization problems, very good example programs.)

MIMO系统程序,MATLAB原程序，运行可以通过(THE sysetem of MIMO)

wind power systems with permanent magnet generator in matlab