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希望大家共同探讨问题，共同进步，祝大家学业有成！(U.S. to discuss the issue of hope and common progress, I wish everyone with achieving!)

瑞利分布信号直方图的产生已经仿真，已经调试通过。(Rayleigh distribution histogram has generated signal simulation, debugging has been passed.)

非线性方程组的最速下降法，数值计算基于matlab的源程序。(Steepest descent method based on the Matlab nonlinear equations, numerical calculation)

这个是关于matlab的，里面有matlab的大量可供参考的案例，还有几个ppt也是这方面的，比较好，分享给大家。(This is mainly the MATLAB language and control system simulation, there are a large number matlab reference case, there are a few ppt is in this respect, better, to others.)

说明：  最优多用户检测，即最大后验概率的算法，主要是用于多用户检测中(Optimal multi-user detection, that is, maximum a posteriori probability algorithm, mainly used for multi-user detection)

这是一个找波形路径的函数的matlab代码(This is a path for the wave function of the Matlab code)

Power method of solution for highest/lowest eigen value.

Matlab code for estimation of Direction of arrival angle

说明：  用matlab程序FDTD算法仿真二维光子晶体TM波(FDTD for 2D photonic crystal TM)

自由空间光通信系统在大气湍流信道下的3个主要性能指标分析，即平均误码率、中断概率和平均信道容量。其中大气湍流采用gamma-gamma湍流信道衰退模型。3个M文件为平均误码率与平均信噪比之间的关系(BER_SNR.m)，中断概率(OutageP.m)，以及平均信道容量与平均信噪比之间的关系（C_SNR.m）。程序可直接运行。(The analysis of 3 key performance indicators of Free-Space Optical communication system in atmospheric turbulent channel, namely the average bit error rate, outage probability and the average channel capacity. The atmospheric turbulence is modeled by the gamma-gamma turbulent channel fading model. Three M-files are the relationship between the average bit error rate and the the average SNR (BER_SNR.m), outage probability (OutageP.m), the relationship between the average channel capacity and the average SNR (C_SNR.m).The programs can run directly.)