holography

二维傅里叶变换,对图像进行二维傅里叶变换处理(Two-Dimensional Fast Fourier Transform The purpose of this project is to develop a 2-D FFT program "package" that will be used in several other projects that follow. Your implementation must have the capabilities to: (a) Multiply the input image by (-1)x+y to center the transform for filtering. (b) Multiply the resulting (complex) array by a real function (in the sense that the the real coefficients multiply both the real and imaginary parts of the transforms). Recall that multiplication of two images is done on pairs of corresponding elements. (c) Compute the inverse Fourier transform. (d) Multiply the result by (-1)x+y and take the real part. (e) Compute the spectrum.)

主要是支持向量机代码，可以很好的实现分类，是非常有用的代码。(Mainly support vector machine code, can achieve good classification, is a very useful code.)

三相交流调压的MATLAB仿真，感觉效果还是挺好的。(MATLAB simulation of three-phase AC voltage, the effect is still feeling quite good.)

读取txt文本文件中的数据，然后自动画滞回曲线图！可以区分不同周期，用不同颜色描述！(Txt text file to read the data, then the hysteresis curve from the animation! Can distinguish between different periods, with different color descriptions! )

各种随机数产生程序，包含了随机数产生的各种方法。(All kinds of random number generator program includes various methods of random number generator.)

据姚俊，马松辉. 《Simulink建模与仿真》. 西安电子科技大学出版社为教材做的PPT(PPT)

说明：  2BP神经网络的非线性系统建模-非线性函数拟合(bp neural networing)

说明：  svm多种核函数，选择核函数类型，参数需自行设定。(SVM a variety of kernel function, the type of kernel function, parameters need to be set. )

数学工具软件Matlab的学习资料，内容十分详尽，是初学者的实用参考资料。(Matlab mathematical tools of learning materials, the content is very detailed, useful references for beginners.)

基于matlab语言的含有延时环节的不完全微分PID算法程序(Incomplete differential PID program)