21658400032065

说明：  基于小波理论等方法，实现了对2D图像的压缩。欢迎分享！(Method based on wavelet theory, the realization of the 2D image compression. Welcome to share!)

matlab用于分析图像去噪处理，含有多种算法的比较分析，还是比较全面的，适合用做期末论文(for the analysis of image denoising matlab is quite comprehensive, comparative analysis, containing a variety of algorithms, suitable for use as the final paper)

chopper is simulated with IGBT switches

matlab pso algorithm code that can use easily

近邻类聚算法matlab实现，适合初学算法工程师，有效解决聚类问题(AP matlab)

前推回代法的辐射状配电网潮流程序 matlab编写蚁群算法实践 粒子群工具箱PSOt 基于遗传算法配电网无功优化方法程序源代码 求解机组组合问题的多种群混沌蚁群算法(Before the backward substitution method for radial distribution power flow program Matlab to write practical particle swarm ant colony algorithm toolbox PSOt Reactive Power Optimization Based on Genetic Algorithm method of program source code to solve the unit commitment problem Multigroup Chaotic Ant Colony Algorithm)

%solve u_xx + u_yy = f(x,y) % over the region D = [x0,xf,y0,yf] = {(x,y) |x0 <= x <= xf, y0 <= y <= yf} % with the boundary Conditions: % u(x0,y) = bx0(y), u(xf,y) = bxf(y) % u(x,y0) = by0(x), u(x,yf) = byf(x) % Mx = # of subintervals along x axis % My = # of subintervals along y axis % tol : error tolerance % MaxIter: the maximum # of iterations

周期图法谱估计需要对信号序列“截断”或加窗处理，其结果是使估计功率谱密度为信号序列真实谱和窗谱的卷积，导致误差的产生。本程序分别设计了周期图法,最大熵功率谱估计和Welch法以及它们的对比,最大熵功率谱估计目的是最大限度地保留截断后丢失的“窗口”以外信号的信息，使估计谱的熵最大。(Periodogram spectrum estimation signal sequence needs to " cut off" or add the window handle, the result is an estimated power spectral density of the signal sequence of the real spectrum and spectral convolution window, resulting in the generation of errors. The procedures were designed periodogram, maximum entropy power spectrum estimation and the Welch method and their comparison, the maximum entropy power spectrum estimation purpose is to maximize the retention of truncated after the loss of the " window" than the information signal, the entropy of the estimated spectrum maximum.)

通用的牛顿拉夫逊法潮流计算程序，可以自行输入支路参数矩阵，节点参数矩阵。(Universal Newton Raphson power flow )

说明：  matlab的学习小教程，适合初学者，包括平方根法、迭代、解常微分方程(Matlab learning course, suitable for beginners, including square root method, iteration, solution of ordinary differential equation)