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关于LDPC的完整的编解码程序，涉及到几种不同的方法，值得学习。(Complete procedures)

pycharm激活方式汇总，适用于各平台(Pycharm activation method summary, applicable to various platforms)

卫星工具包（STK）的英文版说明及中文版教程(Satellite Toolkit (STK) in English and Chinese versions of tutorials that)

For PCA9685. STM32F405 is needed

二维经验模式分解，速度较快，不错的代码，希望对学习HHT的朋友有用-Two-dimensional empirical mode decomposition, fast, good code

Matlab表情识别，特征脸[1 ]作为面部表情分类的方法。首先，利用训练图像创建低维人脸空间（pca）。这是通过训练图像集主成分分析（PCA）及图片主成分分析（即具有较大特征值的特征向量）获得的。 结果，所有的测试图像以所选择的主成分表示，计算投影图像与所有投影列车图像的欧几里得距离，选择最小值以找出与试验图像最相似的训练图像。(The feature face [1] is used as a facial expression classification method. Firstly, a low-dimensional face space (pca) is created using training images. This is obtained by training principal component analysis (PCA) of image set and principal component analysis of image (i.e. eigenvectors with larger eigenvalues). As a result, all the test images are represented by the selected principal components, the Euclidean distance between the projected image and all the projected train images is calculated, and the minimum value is selected to find the training image most similar to the test image.)

说明：  e横向图片浏览代码图片QueryElastislide自适应所属图片代码(E Horizontal Picture Browsing Code Picture Query Elastislide Adaptive Picture Code)

说明：  本人采用Creo Parametric 4.0 M020进行绘制。(I use Creo Parametric 4.0 M020 to draw.)

说明：  VB多线程中用C++的API产生崩溃，只能用ActiveX替代(Instate C++ API with ActiveX)

很好用，用matlab编的偏最小二乘法，直接在matlab里就可以用。另外带有PLS讲解-Good use, with the partial least squares matlab compiled directly in matlab can be used inside. In addition to explain with PLS