ssfm_nlse

simple dtc for three phase induction motor

说明：  在MATLAB环境下的3780点FFT仿真(The Simulation of 3780 point FFT in MATLAB environment.)

说明：  东北三省2009年数学建模的B题：丁克现象，已获联赛二等奖，现将论文以及Matlab源代码上传，希望对相关人员有所帮助。(Northeast B, Mathematical Modeling in 2009 Topic: DINK phenomenon, has been league second prize, papers, and now Matlab source code for uploading, hope relevant personnel be helpful.)

MatlabBGL. A Matlab Graph Library. MatlabBGL is a Matlab package for working with graphs. It uses the Boost Graph Library to efficiently implement the graph algorithms. MatlabBGL is designed to work with large sparse graphs with hundreds of thousands of nodes.

说明：  120多个用MATLAB编写的信号处理程序，它们是本书各个章节的大部分例题。用MATLAB编写的程序的名称由“exa”开头，接下来是所在的章、节及例题的序号，如exa010101,指的是第1章第1节（即1.1节）的第1个例题，即例1.1.1。如果该程序是为了说明某一个m文件的应用，则在上述名称的后面跟一个下划线，再在后面加上所说明的MATLAB文件的名称，如exa011001_rand，即是例1.10.1,该例用来说明rand.m文件的应用。(More than 120 signal processing programs written in MATLAB are most of the examples in each chapter of this book. The name of the program written in MATLAB begins with "exa", followed by the ordinal number of the chapters, sections and examples, such as exa0101, which refers to the first example of chapter 1, section 1 (i.e. section 1.1), namely example 1.1.1. If the program is to illustrate the application of an M file, then follow the above name with an underscore, and then add the name of the MATLAB file, such as exa011001_rand, which is Example 1.10.1. This example is used to illustrate the application of rand.m file.)

说明：  完整kriging代理模型代码，有说明书以及使用手册(Complete Kriging metamodel code with instructions and user manual)

说明：  利用MATLAB产生正弦信号，加入高斯白噪声后利用小波变换技术去噪声(The sine signal is generated by MATLAB, and the noise is removed by wavelet transform after Gaussian white noise is added)

利用二维有限差分法对单脊波导TM模进行计算。通过调整网格数目观察计算结果的精度，可以设定出最优的网格数目，然后改变波导中脊的尺寸，观察最低两个TM模对应的截止频率的变化规律，最后给出对应的横截面电场、磁场分布图(The two-dimensional finite difference method to calculate the single-ridge waveguide TM mode. The optimal number of grid can be set by the accuracy of the adjustment of the calculation result of the grid number observed, and then change the size of the waveguide ridge observed the lowest two corresponding to the TM mode of the cutoff frequency of the variation, and finally to give the corresponding cross cross-section of the electric field, magnetic field maps)

The basic steps of the edge-based text extraction algorithm are given below 1. Create a Gaussian pyramid by convolving the input image with a Gaussian kernel and successively down-sample each direction by half. (Levels: 4) 2. Create directional kernels to detect edges at 0, 45, 90 and 135 orientations. 3. Convolve each image in the Gaussian pyramid with each orientation filter. 4. Combine the results of step 3 to create the Feature Map. 5. Dilate the resultant image using a sufficiently large structuring element (7x7 [1]) to cluster candidate text regions together. 6. Create final output image with text in white pixels against a plain black background.

能量熵的计算，包含特征值与特征向量的提取、训练样本以及最后的识别，含噪脉冲信号进行相关检测,有循环检测，周期性检测，IDW距离反比加权方法，在matlab环境中自动识别连通区域的大小。( Energy entropy calculation, Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, Noisy pulse correlation detection signal, There are cycle detection, periodic testing, IDW inverse distance weighting method, Automatic identification in the matlab environment the size of the connected area.)