QAM16

I have provided the code for watermarking and calculatuin of MSE , PSNr and comparison.

Threshold Adaptive Threshold

这是Thomas Schonhoff编写的信号检测预估计课本的对应的英文课件，对于学习这本书的学者有很大的帮助(This is Thomas Schonhoff textbooks written in signal detection to estimate the corresponding English courseware, scholars to study this book has a lot of help)

说明：  在2d不光滑曲面上的射线跟踪算法，效果比较好，希望可以帮助到大家(2d surface is not smooth in the ray-tracing algorithm, the effect is good, hope you can help to)

ldpc码的编解码实现，验证可用，针对EMD方法的不足。( Codec ldpc code implementation Verification is available, For lack of EMD.)

本段代码是用来做布拉格光纤光栅的仿真，耦合模式算法。(This section of code is used for the simulation of fiber Bragg grating coupled model algorithm)

谱分解（Spectral decomposition），是将矩阵分解为由其特征值和特征向量表示的矩阵之积的方法。(Spectral Decomposition , is the product of the matrix into the matrix method by eigenvalues and vector representation.)

说明：  数字信号处理源代码，基于MATLAB的。

说明：  这个函数产生了归一化的基于逆DFT方法的瑞利采样。(This function generates normalized rayleigh samples based on Inverse DFT method)

具有图形操作界面的支持向量机多类分类实验系统.全部用Matlab实现,可以实现多种分类识别. 这是本人的毕业设计的附属程序(graphical interface with support vector machines more experimental classification system. All using Matlab, could achieve multiple classification. This is my graduation design procedures for the subsidiary)