Generate_data

基于迫零（ZF）与MMSE的两种预编码MATLAB程序(Based on zero forcing (ZF) and MMSE precoding two MATLAB programs)

用matlab来仿真ofdm调制算法，ofdm技术用于4G无线通信系统。(Ofdm simulation using matlab to modulation algorithm, ofdm technology for 4G wireless communications systems.)

说明：  matlab小波分析高级技术的全面源码，与大家分享。(the whole source code of the book <<The high technique of Wavelet Analysis based on Matlab>>)

When doing optimization, GA algorithm was initially selected, but the instability of the GA (or local optimization) is really frustrating, before and after the resulting difference can at times reach more than 30 , at that time due to time reasons, I chose to optimize 1000 times, then the minimum value of the most optimal solution. Although the problems are solved, but an academic, this style of running is pretty embarrassing. So, I downloaded a GA-PSO algorithm, try using the combination of GA and PSO optimizing strategies, results algorithm issues, efficiency and good. I downloaded the original algorithm, there is a problem is that it is aimed at all upper and lower limits of the design variables are the same, so I modified the program and improvements, you can now deal with upper and lower limits of the inconsistency problem and fix the bug. Now, program modifications, and share, hoping to be useful to you

this is the kmeans programme which can help to do the segmentation and clustering

function [L,C] = kmeans(X,k) KMEANS Cluster multivariate data using the k-means++ algorithm. [L,C] = kmeans(X,k) produces a 1-by-size(X,2) vector L with one class label per column in X and a size(X,1)-by-k matrix C containing the centers corresponding to each class. Version: 07/08/11 Authors: Laurent Sorber (Laurent.Sorber@cs.kuleuven.be) References: [1] J. B. MacQueen, "Some Methods for Classification and Analysis of MultiVariate Observations", in Proc. of the fifth Berkeley Symposium on Mathematical Statistics and Probability, L. M. L. Cam and J. Neyman, eds., vol. 1, UC Press, 1967, pp. 281-297. [2] D. Arthur and S. Vassilvitskii, "k-means++: The Advantages of Careful Seeding", Technical Report 2006-13, Stanford InfoLab, 2006.

将COMTRADE格式的数据转换成为真实的电气量值，并绘制波形(COMTRADE format of the data will be converted into actual electrical value, and draw the waveform)

地球物理数值计算方法中有限单元法的基本知识和地震波传播正演模拟的应用。(Geophysical methods of numerical finite element method calculation of the basic knowledge and forward modeling of seismic wave propagation applications.)

基于傅立叶－梅林变换的matlab图像配准程序，可以灵活设置待配准图像的大小及旋转角度等，配准前可以选择多个参数控制配准结果，可以显示配准后的图像及图像间的具体变换参数以及中间结果等(Based on Fourier- Mellin transform matlab image registration procedures, registration can be flexibly set the image size and rotation angle, registration before you can select multiple parameter control registration results, you can display the images and post-registration between images specific transformation parameters and intermediate results)

VB程序中实现调用MATLAB的方法. 介绍了在VB 应用程序中利用动态数据交换和ActiveX自动化(OLE自动化)协议实现的两种调用MATLAB函数的方法。通过这两种方法实现了VB的可视化界面与MATLAB 强大的数值分析和图形显示的能力的结合。(Introduced in VB application using Dynamic Data Exchange and ActiveX Automation (OLE Automation) protocol calls MATLAB function of the two methods. Achieved by either method, the visual interface of VB and MATLAB powerful numerical analysis and graphical display of the ability of combination.)