DFT2

其基本思想是：采用信号与噪声的状态空间模型，利用前一时刻地估计值和现时刻的观测值来更新对状态变量的估计，求出现时刻的估计值。它适合于实时处理和计算机运算。 (The basic idea is: use of signal and noise state-space model, the estimated value of the previous time and are always observations to update the estimated state variables, find an estimate of time there. It is suitable for real-time processing and computing.)

Optilux是一个设计，模拟和分析光通信系统的开发工具包(Optilux is an collection of tools that provide advanced techniques to design, simulate, and analyze optical communication systems)

a code on pattern recognition which has pca as a dimentional reduction and knn as a classifier.

小数分频PLL的matlab源代码，包含二阶sigma-delta调制器的源码。(Fractional PLL the matlab source code)

统计分析用的一些常用方法，比如回归、聚类、主成分分析、线性回归等的matlab程序(Some commonly used statistical analysis methods, such as regression, clustering, principal component analysis, linear regression of the matlab program)

matlab 计算层合板 A B D 随铺层角和层数的变化(matlab calculation laminated plates ABD with ply angle and the number of layers)

plane wave expansion for 2D and 3D photonic crystal band gap calculations

（1）离散余弦变换DCT基底灰度图像绘制（2）离散傅里叶变换DFT基底灰度图像绘制((1) discrete cosine transform DCT base gray image rendering (2) Discrete Fourier Transform DFT basal gray image rendering)

随机森林的matlab版本，重修改整理过的，可以直接拿来用，带实例。可以用来做回归法分析及分类。是机器学习中的快速有效的方法，基本不会产生过拟合。(Random Forest, an efficient regression and classification tool in area of machine learning. The Programms performs well and a demo is offered.)

解决图匹配的二次规划问题，完成一对一的匹配(Solve quadratic programming graph matching problem, and to complete a one-to-one matching)