matnet_src

本设计通过利用VB 编写用户操作界面和MATLAB 实现后台运算及图形处理的混合编 程的方法，来完成对通信原理仿真系统的开发。设计中采用ActiveX 技术来实现VB 和MATLAB 之间的通信，在VB 应用程序内创建MATLAB ActiveX 对象，实现对MATLAB 的调用，最终 仿真实现信源编码解码、模拟调制解调、数字基带传输、数字调制解调等功能。(This design user interface written using VB and MATLAB computing and graphics processing to achieve the background of mixed programming method, to complete the simulation system for the development of communication theory. Design using ActiveX technology to achieve communication between VB and MATLAB, the VB application, create a MATLAB ActiveX object, call the MATLAB implementation, to achieve the ultimate source codec simulation, analog modem, digital baseband transmission, digital modulation and demodulation functions.)

功能：用BFGS算法求解无约束问题：min f(x) 输入：x0是初始点，fun,gfun分别是目标函数及其梯度； varargin是输入可变参数变量，简单调用bfgs时可以忽略它， 但是其他程序循环调用时将会发挥重要作用 输出：x,val分别是近似最优点和最优值，k是迭代次数。(Function: BFGS algorithm for unconstrained problem: min f (x) Input: X0 is the initial point, fun, gfun each objective function and its gradient varargin variable parameter is the input variable, it can be ignored when a simple call bfgs , but other programs will play an important role when the cycle is called output: x, val are approximate optimum and the optimal value, k is the number of iterations.)

说明：  截止频率在0.3Hz的巴特沃斯低通滤波器，采用二阶级联进行编程。(In the 0.3Hz cutoff frequency of Butterworth low-pass filter, used to program the second class together.)

dct algorithm watermark

说明：  这是GM(1,1)灰色预测的程序，里面有检验和说明，绝对可用(This is the GM (1,1) gray prediction procedure, which has tested and description, absolutely free)

matlab从入门到精通第12章书后源码对初学者很有帮助(matlab)

it s about digital watermark using LSBs, DCT and Wavelet methods

matlab7.0从入门到精通配书光盘源程序(matlab7.0 books from the entry to the master CD-ROM with source code)

希尔伯特变换理论及matlab程序( Hibert for matlab )

说明：  传统的DTC-SVM的Matlab生成的程序(Traditional DTC-SVM Matlab generated program)