QAM

this is some codes in systems

matlab编写的数值计算程序，用于数学实验方面(Matlab prepared by the numerical calculation program for math experiments)

使用abc坐标系统转换为dq0坐标系统元件实现abc坐标系统转换为dq0坐标系统。(This block performs the abcto dq0 transformation on a set of three-phase signals.)

matlab编写的用霍夫曼变换检测圆的算法 对初学者有帮助(Function uses Standard Hough Transform to detect circles in a binary image. According to the Hough Transform for circles, each pixel in image spac corresponds to a circle in Hough space and vise versa. upper left corner of image is the origin of coordinate system.)

matlab宝典,电子工业出版社,包含该书的源码12-14章，第12章文件I／0 第13章MATLAB编译器第14章应用程序接口(Matlab, the book electronics industry Press, the book contains chapters 12-14 source, Chapter 12 documents I/Chapter 13 0 MATLAB Compiler Chapter 14 Application Program Interface)

带有markov链的灰色系统程序，自己编写的，效果不是特别的明显，但以改小误差(Grey theory model with markov chain to do prediction!)

detect face of people with matlab

通过二维图抽象的DCT变换，取前n和系数进行重构得到的图像进行显示(Two-dimensional map by abstraction of DCT, take the first coefficient n and displays the image reconstructed by)

basic full converter lab circuit

人脸表情识别中的2DLDA方法，非特定人识别。(Face Recognition 2DLDA method, non-specific Recognition.)