H5_20071909

calculate the gradient of an image

M&M载波恢复算法的MATLAB实现，很具有参考价值，精度满足要求(M&M algorithm for carrier frequency estimate)

说明：  本文件夹中包含萤火虫算法；可以用于都不同的算法进行优化，实测可以进行优化和应用。另外，这种算法都是最近几年比较新的算法，可以用于发文章。(This folder contains the firefly algorithm; it can be used for optimization of different algorithms, and the actual measurement can be optimized and applied. In addition, this algorithm is relatively new in recent years, and can be used to publish articles.)

matlab code for database creation

基于小波变换的数字水印检测代码，可以将水印分离出来(Based on Wavelet Transform Digital Watermarking detection code, a watermark can be separated)

Channel coding matlab codes, cyclic codes anc conv codes, encoders and decoders

Line Search using different type of functions. This is useful for Nonlinear programming.

支持向量机matlab程序，版本libsvm－2.89，包括接口文件(Matlab program of support vector machine)

产生正交的AM信号和FM信号，信号为复信号，含有I路和Q路，FM信号可设置调制指数变量，运行后可看到仿真时域及其频谱图(Generate quadrature AM signal and FM signal, the signal for the complex signal containing I and Q Road Road, FM signal modulation index variable can be set to run after seeing the time-domain simulation and spectrum)

建立一个径向基神经网络，对非线性函数y=sqrt(x)进行逼近，并作出网络的逼近误差(The establishment of a radial basis function neural network, the nonlinear function y = sqrt (x) to approximate, and make the network approximation error)