xianxingdaishu

基于matlab的潮流计算，可实现人机界面交互。显示潮流的结果(Matlab calculation based on the trend, enabling human-machine interface interaction. Shows the trend of the results)

该代码是采用了feedforward改进算法的choleski decomposition,可用于矩阵方程的求解(The code is for choleski decomposition with feedforward method)

说明：  its an matlab pdf document on aco

说明：  一个用matlab编写的一维FDTD算法程序(Using matlab to prepare a one-dimensional FDTD algorithm procedure)

直方图提取函数，用于人脸识别中，输入一幅图像，函数内部对输入图像做短时傅里叶变换，得到四幅幅度图，再求四幅图的直方图特征，合并后输出(Histogram extraction functions for face recognition, the input image, the input image inside the function to do short-time Fourier transform, the four magnitude diagram, and then seek four graph histogram feature, the combined output)

用Ritz-Galerkin方法解边值问题： u +u=-x,0<x<1, u(0)=u(1)=0,精确解为u*(x)=sinx/sin1-x； 得出结果与精确解作比较，画出误差分析图(With the Ritz-Galerkin method to solve the boundary value problem: u' ' + u =- x, 0 <x<1, u(0)=u(1)=0,精确解为u*(x)=sinx/sin1-x； 得出结果与精确解作比较，画出误差分析图)

微波啁啾延迟线设计程序。压缩包中，Chirp_z.m为计算等效电路中的阻抗分布。W_h.m为等效线宽的分布。结合相关的三维设计软件，可以设计出具有线性群时延特性的延迟线。(Microwave chirped delay line design program. Compressed packages, Chirp_z.m distribution for computing the impedance of the equivalent circuit. W_h.m equivalent linewidth distribution. 3D design software, you can design a linear group delay characteristics of the delay line.)

说明：  MOPSO多目标粒子群优化算法MATLAB实现（可直接运行）(MOPSO multi-objective particle swarm optimization algorithm MATLAB (can be directly run))

Function matlab NLMS algorithm

pca进行人脸识别的原理和代码，特征脸方法，图像重建(PCA for face recognition principle and code, Eigenfaces method, image reconstruction)