pca

本程序用matlab编写。实现图像的构造编码。压缩包中的PPT介绍构造编码。一个编码程序，一个解码程序。本程序是无损压缩，编码后可压缩掉30 以上。附有图片。程序有必要的注释。(This program written by matlab. The structure of image coding. PPT introduced compressed package structure encoding. A coding process, a decoding program. This procedure is lossless compression, encoding more than 30 after the compressible out. With pictures. Program has the necessary comments.)

Matlab工具箱总汇，包含工具包中函数的说明，很值得收藏！(Matlab toolbox Center, including the description of kit function, it is worth collecting!)

一个进行ip数据截取的程序。寻找指定的同步码和帧长，截取制定的字节段和比特段。另有批处理数据的功能。对做信号方面的人有借鉴意义。(ip for a data interception procedures. Find designated synchronous code and frame size, interception of the development of bytes and bits of. Another batch of data functions. Right signals so the people learn.)

计算小波能谱熵的资料，很有用。计算小波能谱熵的资料，很有用。计算小波能谱熵的资料，很有用。(Calculating wavelet energy spectrum entropy information useful. Calculating wavelet energy spectrum entropy information useful. Calculating wavelet energy spectrum entropy information useful.)

Matlab源码 计算矩阵各列与其他各列的互相关系数，并按照概率分布利用直方图的形式展示出来。 该互相关系数的定义参考Michael Elad的《Sparse and Redundant Representations》p25 Definition2.3(Matlab code for mutual-coherence of a given matrix)

matlab程序，用mfile编写的鲁棒控制程序(matlab program, written with mfile robust control procedures)

DistMesh giving a singular FEM matrix?(Hi Anyone here with some experience of using DistMesh in finite element code? I m solving the scalar Helmoltz equation in an annular region in 2D: rho_1 < rho < rho_2 where rho_1 is the radius of a Perfect Electric Conducting cylinder and rho_2 is where the mesh is truncated using an Absorbing Boundary condition. Now, I ve written code to mesh the region myself (by dividing the region into annular rings and picking a fixed number of points on each ring) and I ve written another program which uses DistMesh to mesh the region. I get a nice solution using my own meshing code but the FEM matrix becomes singular when I use DistMesh. This is the DistMesh Code I used: Circle with hole rABC=1.5 rCyl=0.5 fdstring=sprintf( ddiff(dcircle(p,0,0, f),dcircle(p,0,0, f)) ,rABC,rCyl) fd=inline(fdstring, p ) box=[-2,-2 2,2] [p,N]=distmesh2d(fd,@huniform,0.04,box,[]) I tried changing box and the 0.04 value (initial edge length). But every time, the matrix becomes sin)

说明：  Lm算法是非常有效的非线性最小二乘法，对于光束平差很有用(Lm algorithm is very effective non-linear least squares method is useful for beam adjustment)

说明：  1.1 MATLAB软件介绍 1.1.1 MATLAB发展进程 1.1.2 MATLAB的基本功能 1.1.3 MATLAB语言的特点 1.1.4 MATLAB R2011a的新功能 1.2 MATLAB安装与运行 1.3 MATLAB的运行环境 1.3.1 命令窗口 1.3.2 历史命令窗口 1.3.3 工作空间 1.3.4 当前文件夹 1.4 MATLAB帮助文档 1.4.1 帮助窗口 1.4.2 帮助命令 1.5 变量 1.6 矩阵 1.6.1 矩阵创建 1.6.2 数列创建 1.6.3 矩阵的基本运算 1.7 高维矩阵 1.7.1 创建高维数组 1.7.2 高维数组操作函数 1.8 演示MATLAB 1.9 小波分析概述 (1.1 MATLAB Software 1.1.1 MATLAB development process 1.1.2 MATLAB basic functions 1.1.3 MATLAB language features 1.1.4 MATLAB R2011a new feature 1.2 MATLAB installation and operation 1.3 MATLAB runtime environment 1.3.1 Command Window 1.3.2 History Command Window 1.3.3 Workspace 1.3.4 Current folder 1.4 MATLAB help documentation 1.4.1 Help Window 1.4.2 Help Commands 1.5 Variables 1.6 Matrix 1.6.1 Creating Matrix 1.6.2 series created 1.6.3 Basic operation matrix 1.7 high-dimensional matrix 1.7.1 Creating high-dimensional arrays 1.7.2 High-dimensional array manipulation functions 1.8 demo MATLAB 1.9 Overview of Wavelet Analysis )

局部模糊c均值聚类算法的matlab代码(A Robust Fuzzy Local Information C-means Clustering Algorithm code)