schroeder

a presentation demonstrate the principles of Fourier transformation with matlab code

fuzzy_cluster模糊聚类分析，本函数使用的是直接聚类法，直接输出聚类信息，无返回值 输入参数data是需要分类的数据，将会对data的列分类，请输入数据前把需要分类的向量按列保存到矩阵data 输入参数numda是分类的分类点，如果不知道可以先省略，系统默认1-0依次减小用以方便判断分割点，然后用户再细分( Fuzzy_cluster fuzzy clustering analysis, the function uses the clustering method is direct, direct output clustering information, no return value input parameter data is needed to classify data, classification of data will be listed, enter the data before the need saved by the column vector classification matrix data to the input parameters numda profile classification point is, if you do not know can be omitted, in order to reduce the system default 1-0 split point for easy judgment, then the user is subdivided)

一维小波变换对信号进行去噪，小波包变换，对地震记录进行去噪(A one-dimensional wavelet transform for signal denoising, wavelet packet transform, the noise of seismic record)

最小二乘辨识参数，用来辨识非线性系统的参数，还可以对非线性系统进行仿真。(Least squares identification parameters, used to identify nonlinear system parameters, it can also nonlinear system simulation. )

运用平面波展开法模拟光子晶体光纤中的带隙结构(The use of the plane wave expansion method photonic crystal fiber bandgap structure)

文章研究了一种模块化的小型光伏离网储能发电系统，该模块化光伏离网储能系统建成后用于偏远山区(This article studies a modular small-scale photovoltaic off-grid energy storage power generation system. This modular photovoltaic off-grid energy storage system is used in remote mountainous regions after it is completed.)

this code gives various types of filter designs like chebbyshev and butterworth filters

对于智能天线的设计仿真 包含有详细的说明(for smart antenna design simulation contains detailed explanation)

基于PCA算法的matlab人脸识别代码及附注(Face Recognition.)

《精通Matlab6.5版》张志勇等编著，书本相关的PPT文件("proficient Matalab 6.5 version of the" Written by Zhang Zhiyong, books related to the PPT document)