caiyang

说明：  图像处理程序集 包含众多图像处理的基本操作方法(Image processing assembly)

EMD的程序要用到matlab的时频工具箱 matlab的工具箱的安装步骤： 1.解压下载的文件包，将tft/mfile复制到matlab的toolbox文件夹下 2.建立搜索路径，matlab->file->Set Path->Add Folder ->选择mfile文件夹复制到matlab的toolbox的路径->save->close 3.测试是否建立搜索路径成功，在matlab命令窗口打入：which fmsin 返回的结果是你放mfile的正确路径说明建立搜索路径成功。此时就完成了安装工具包的工作。(EMD program to use when the frequency of matlab toolbox matlab toolbox installation steps: Unzip the downloaded file package, copy tft/mfile to the toolbox matlab file folder 2 established the search path, matlab-> file-> Set Path-> Add Folder -> Select mfile folder to the toolbox matlab path-> save-> close 3 test whether to establish a successful search path in matlab command window enter: which fmsin The result returned is the correct path you put mfile instructions to establish a successful search path. This time to complete the installation kit work.)

利用小波的消噪功能检测微弱的故障突变信号。(Using wavelet denoising function mutation detection of weak signals fault.)

潮流计算在matlab中的程序使用，根据电力系统中的公式，在matlab中进行实现(Flow calculation in matlab program using a formula based on the power system, carried out to achieve in matlab)

惯性导航误差分析程序可以做误差曲线图像，可以模拟真实系统的误差特性(Inertial navigation error analysis program can make the error curve of the image, you can simulate the real system error characteristic)

这里面有两个程序，两个都是采用4QAM调制。不过个人觉得第一个更容易懂，因为写的很有条理。我改的那个程序就是根据这个来的。 不过在这里面有个问题就是信道系数只能是由高到低，大家可以试试，改成[0.227 0.46 0.688 0.46 0.227]这个是老师给我的仿真中常用的信道系数，这个成为归一化信道，就是系数平方和为1. 第二个程序没有涉及到信道系数，但是这个程序当中，在128个子载波中，前后有32个空载波，这个在OFDM中也是经常用的，这样可以降低误码率。 (And there are two programs, two are based on 4QAM modulation. But personally feel that the first is easier, because the writing is organized. I changed that procedure is based on the past. However, there is a problem in that there is only channel coefficients from high to low, we can try and change into [0.227 0.46 0.688 0.46 0.227] This is the teacher gave me the simulation channel coefficient commonly used, this became normalized channel, is coefficient of the square and is 1. The second program is not related to channel coefficients, but this program which, in the 128 sub-carriers, the before and after the 32 air carriers, the in OFDM is also often used, which can reduce the error rate.)

2005版EMD(经验模态分解)完整程序(2005 version of EMD (Empirical Mode Decomposition) integrity procedures)

利用matlab实现维特比编解码，采用的是汉明距离，[3 1](Using Viterbi decoding matlab implementation, using the Hamming distance, [31])

牛顿拉夫森法用来解决极大似然估计的问题。很好用。(Newton La Fusen method to solve the problem of maximum likelihood estimation. Good use.)

Matlab 的M 文件，实现任意空间曲面的绘制！(matlab m file,draw all surface)