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序列x(n)的Welch法求其功率谱密度估计，先产生噪声序列再绘制波形最后用Welch法估计功率谱。(The sequence of X (n) for the Welch power spectrum density estimation method, first noise sequence waveform drawing and using Welch power spectrum estimation method.)

张志勇的《精通MATLAB6.5》内容详细，是学习MATLAB编程人员值得参考的一本好资料。(Zhang Zhiyong, a " master MATLAB6.5" detailed and is worth considering to learn MATLAB programming staff of a good information.)

已知控制对象和目标函数，用粒子群算法对系统进行辨识的matlab程序。(Known control object and the objective function, particle swarm optimization (pso) algorithm for system identification of matlab program. )

stimulation of voice traffic using matlab

This file include the normalized LMS algorithm and subband LMS algorithm. all of them are in m.file This file can be used to echo noise cancellation, and active noise control

allows to create a flow field in computer vision to determine movement between frames

Mie theory code for simulating optical scattering by small particles

2D photonic crystal Band Structure

动态PCA方法，引入动态时间l，考虑变量本身的时序自相关性，同时还分析变量之间的时序相关性,把PCA方法应用到动态数据矩阵。 (Dynamic PCA method, introducing dynamic time l, consider the timing of the variable itself autocorrelation, also analyzed the correlation between the timing variables, the PCA method is applied to dynamic data matrix.)

ifft和fft实现线性卷积,并与matlab中默认内置的conv()函数的结果对照，验证其正确性。(using ifft and fft to accomplish linear conviction. Comparing this method with matlab default function conv().)