chap11

11.C++ Primer 3rd（中文版）,众所周知的C++学习经典书籍，C++学习圣经(11.C++ Primer 3rd (Chinese version))

梯度下降法是最早最简单，也是最为常用的最优化方法。梯度下降法实现简单，当目标函数是凸函数时，梯度下降法的解是全局解。一般情况下，其解不保证是全局最优解，梯度下降法的速度也未必是最快的。梯度下降法的优化思想是用当前位置负梯度方向作为搜索方向，因为该方向为当前位置的最快下降方向，所以也被称为是”最速下降法“。最速下降法越接近目标值，步长越小，前进越慢。(The gradient descent method is the earliest and most simple and most commonly used optimization method. The gradient descent method is simple to realize. When the objective function is a convex function, the solution of the gradient descent method is a global solution. In general, the solution is not guaranteed to be the global optimal solution, and the gradient descent method is not necessarily the fastest. The optimization idea of gradient descent method is to use the current position negative gradient direction as the search direction, because the direction is the fastest descending direction of the current position, so it is also called the steepest descent method. The faster the slowest descent approach is closer to the target, the smaller the step, the slower the progress.)

利用matlab模拟光纤中TE模的模式分布图。(Using matlab simulation model TE mode fiber distribution.)

此源代码是基于COM和ADO的数据库编程，用到了VC++6.0和ACCE(This source code is based on COM and ADO database programming, using the VC++ 6.0 and ACCE)

awgn信道的建模。matlab实现方针，进行了比较(awgn channel modeling. matlab realize the principle of a comparative)

蚁群算法最短路径通用Matlab程序.rar

中心极限定理的验证，三种独立分布具有同样的均值与方差，大量叠加后分布趋于正态(Central limit theorem verification, three kinds of independent distribution has the same mean and variance, a large number of superimposed normal after the distribution tends)

二维OSTU方法 ，能够自动给出合适阈值 matlab环境下开发(Two-dimensional OSTU method that can automatically give the appropriate thresholds developed under matlab environment)

说明：  RS码的C实现，通过mex接口，在MATLAB中创建的LTE下行链路中测试，可跑出误码率曲线。(RS code is implemented in C, by mex interface, LTE downlink created in MATLAB test can be run out of BER curves.)

this is the matlab algorithm for mvdr beam forming