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灰度共生矩阵提取特征值，最近邻算法，进行纹理图像分类。creat_apprentissage用来训练样本，cooccurence是灰度共生矩阵提取特征值，knn是进行k最近邻算法，classif是纹理图像分类(coocurence matrix，using K nearest neighbor to classify textures images.)

This file is about OFDM Channel Estimation Based on Comb Pilot.

TI 下载的矢量控制算法，里面包含各种函数，还有PDF文件。(Download the TI vector control algorithm, which contains a variety of functions, and the PDF file.)

对电网不平衡情况下的三相PWM整流器进行了详细的建模分析，并在此基础上研究了两种不平衡控制策略。其一是抑制网侧负序电流的控制策略，主要控制三相PWM整流器交流电流对称正弦化控制。其二是抑制直流电压谐波分量的控制策略，主要控制三相PWM整流器从电网吸收平衡的瞬时功率，消除直流电压中的各次谐波分量。(Research on the Control strategy of Three-Phase PWM Rectifiers under Unbalaneed Grid Voltage)

说明：  基于平面波展开 传输矩阵计算2维矩形光子晶体模型 计算可得出相关图谱 handbook中除了参数说明还有参考文献等(Plane wave expansion based on the transfer matrix calculation of 2-D model calculation of rectangular photonic crystal patterns can be drawn from the relevant handbook of parameters except that there are references such as)

主要是看如何产生矩形波，定义了矩形波的持续时间，采样点数(width points)

数字信号处理中功率谱的重要算法。代码中对比了经典谱估计直接法和间接法之间的关系(digital signal processing power spectrum in the algorithm. Code Comparison of classical spectrum estimated direct and indirect relations between the)

Gauss Elimination Algorithm is used to solve linear equations in the form Ax=B, find rank of matrix and to find inverse of matrixes. The program is done in matlab platform.

使用OMP的CS重构算法，包含有lena图像。重构生成的图像质量由随机生成的重构矩阵决定(The use of OMP CS reconstruction algorithm, contains Lena image. Reconstruction image quality by the random generation of reconstruction matrix decision)

A simulation of a Control System with COmplex numbers in Gain