ruihua

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.)

通信网中，经过对分析的编程仿真，对爱尔兰B公式以及爱尔兰C公式有了更深的认识，也对通信业务分析的方法也加深了理解，并且利用Matlab GUI 编程验证了算法的正确性。(Communication network, through simulation analysis on programming, Ireland Ireland B formula and the formula C a deeper understanding of methods for the analysis of communication services also deepened the understanding and use of Matlab GUI programming to verify the correctness of the algorithm.)

先进PID控制及其MATLAB仿真详细教程(Advanced PID Control and MATLAB Simulation of a detailed tutorial)

希望对大家学习有所帮助，如果大家对此有什么看法，联系我 (Would like to help everyone to learn, what if everyone has this view, contact me)

four quadrant induction motor

一个MATLAB/Simulink模型，关于电动汽车动力电池荷电状态（State of Charge，SOC）估计； 包括参数文件、模型文件两种，模型文件分别仿真了110A恒流、110A脉冲和ECE15工况； 建模采用基于PEGV的电池等效模型对SOC进行估计，并且加入了温度修正等。 模型比较简单，原理清楚，适合对电动汽车动力电池SOC的估计有兴趣的初学者参考学习，学习前请阅读2到3篇基于电池PNGV等效电池模型的动力电池SOC估计方面论文，这样对理解模型更有帮助。(A MATLAB/Simulink model, on the electric vehicle power battery State of Charge, SOC estimates Including the parameter file and the model file, the model file simulates 110A constant current, 110A pulse and ECE15 working condition respectively. The SOC model was used to estimate the SOC and the temperature correction was added. The model is relatively simple, the principle is clear, suitable for beginners interested in electric vehicle power battery SOC estimation, it will be better to read 2 to 3 SOC estimation papers about battery PNGV equivalent battery.)

说明：  实现的串口通信；的MATLAB与C 在MATLAB与C数据交换中有用(Achieve serial communication the MATLAB and C in MATLAB and C useful for data exchange)

噪声的调制，可以改变调制信号频率，观测已经调制波形(Noise modulation can be changed to the modulating signal frequency, the observation has been modulated waveform)

Automatic control system vapor pressure in the boiler

A example of application of genetic algorithm on matlab.