POD (proper orthogonal decomposition) code in Matlab

my POD application function call routine - useful PHD code

本征正交分解（POD）是以能量表述的随机场的最优分解，采用瑞利商概念及其极值性质推导了POD原理，可用于瞬态场的本征正交分解，代码有注释说明(Proper orthogonal decomposition (POD) is the optimal decomposition of the random field expressed by energy. The principle of POD is deduced by the Rayleigh concept and its extreme

此程序通过POD方法对风压场进行分解进行分析，并可以用主要的模态进行重构，初学者，还望批评指教。(This code can be used to analysis the wind pressure field by POD method, and then can be reconstructed the wind pressure field by main mode of POD, inappropriate, please criticism.)