softbit-BPSK-QPSK-PSK8-QAM16-QAM64

说明：  基于置信传播算法的信道均衡器性能研究仿真(belief propagation)

matlab工程数学。包括统计问题、规划问题、偏微分方程求解、样条工具。(matlab engineering mathematics. Including statistical issues, planning issues, partial differential equations, spline tool.)

PLO definition and graphical results

Matlab code for 4-connectivity and 8-connectivity neighbours

Algorithm for Generating Random Number with Multi-dimensional Discrete Distribution

边界元算法求解正方形导热问题实例。一个简单的二维导热模型，用BEM算法求解，用于学习边界元编程。(Boundary element method for solving square conduction problem instances. A simple two-dimensional heat conduction model, using BEM algorithm for learning boundary element programming.)

两个重要文件： 1、Rayleigh_Doppler_singlePath.m 产生单径Rayleigh衰落，采用了6种方法并进行了比较，推荐使用第6种方法； 2、Rayleigh_Doppler_multiPath.m 根据多条径的延时和强度，产生频率选择性衰落； 在单径和多径两个程序中，均提供了其功率谱的输出代码； (Two important documents: 1, Rayleigh_Doppler_singlePath.m to generate a single path Rayleigh fading, using six kinds of ways and compared, 6 recommended methods 2, Rayleigh_Doppler_multiPath.m under a number of path delay and intensity, resulting in frequency selective fading in both single path and multi-path process, provide the output of its power spectrum code )

说明：  基于高斯消去的LDPC编码程序 改程序主要是将一个一般的校验矩阵化成下三角矩阵，再根据后向递推公式直接得到校验比特值(Of LDPC codes based on Gaussian elimination procedure)

以上代码是求解椭圆微分算子的特征值问题的Matlab源代码，采用有限元法的思想来编写的，程序计算结果和理论是相符的。(The above code is to solve the elliptic differential operator eigenvalue problem of the Matlab source code, using the finite element method to write the ideas, procedures, results and theoretical calculation is consistent.)

rossler分岔代码，很实用哦，稍微改下可用用哦(rosslerfenchangyouyongo )