MATLAB-pca

this code is for frame difference.

用MATLAB实现通信原理的QAM与MSK编码。两个源码以及用到的自己编写的相关MATLAB函数分别放在相应的文件夹下。(Using MATLAB and MSK communication principle of QAM encoding. Both source and associated MATLAB functions used in their preparation were placed in the appropriate folder.)

劳斯稳定性判据的matlab实现。直接运行M文件，按提示输入特征多项式参数，即可进行系统稳定性判别。(The Routh-Hurwitz stability criterion is a necessary (and frequently sufficient) method to establish the stability of a single-input, single-output (SISO), linear time invariant (LTI) control system. More generally, given a polynomial, some calculations using only the coefficients of that polynomial can lead us to the conclusion that it is not stable. in this program you must give your system coefficents and the Routh-Hurwitz table would be shown )

工程中有效测量幅相转换系数方法分析,非常好，公式齐全，推理明确(Effective measurement of phase conversion coefficient method in Effective measurement of phase conversion coefficient method in engineering analysis engineering analysis, is very good, complete formula, reasoning clear )

simulink的入门教程，老师上课讲的课件，较易懂，适用于初学者(simulink introductory tutorial, the teacher talked about class courseware, more easy to understand for beginners)

说明：  找一幅曝光不足的灰度（或彩色图像），按照直方图均衡化方法进行处理(Underexposed to find a gray (or color image), according to the method of histogram equalization processing)

1、顺序后退法特征选择算法 2、SFFS 特征选择算法 3、ISD算法 4、LLR算法 5、CZD算法(1, the order backward method of feature selection algorithm 2, SFFS feature selection algorithm 3, ISD algorithm 4, LLR algorithm 5, CZD algorithm)

通过用类似于阶跃折射率型光纤的理论，计算光子晶体光纤的基模模式折射率和色散。 (By analogy with the theory of step-index fibers, the effective index of the fundamental mode and the dispersion of PCF can be calculated. )

声源定位的波束形成matlab程序，4单元均匀线阵自适应波束形成(Sound source positioning beamforming matlab program)

matlab和microsoft powerpoint的接口程序，欢迎指教，matlab代码(matlab and microsoft powerpoint interface procedures, welcome advice, matlab code)