SIMULACIONES

Solution of system (LU)*v=d

基于MATLAB利用Particle-in-cell模型,对梯形管内壁等离子体离子注入过程,进行了二维数值模拟.计算结果表明在中心电极附近出现了“阳极鞘层”,该鞘层内部不存在离子,而且在鞘层边缘离子密度最高.在上下管壁上的离子注入剂量呈现“m”形分布.通过对注入过程中等离子体密度分布和不同时间段管壁不同位置离子注入剂量的跟踪,发现“阳极鞘层”扩展行为是导致“m”形分布的原因.由于梯形管形状的不对称性,“阳极鞘层”的边缘向梯形长底方向扩展较快.在注入初始时刻离子注入的能量很低,随着时间延长离子能量逐渐升高,这是由离子初始位置决定的.可见梯形管自身形状决定了鞘层形状和最终的离子注入能量和剂量分布.(Based on MATLAB use Particle-in-cell model, the trapezoidal pipe wall plasma ion implantation process, the numerical simulation of two-dimensional calculation results show that in the vicinity of the center electrode to a "anode sheath," which does not exist inside the plasma sheath, and the highest in the sheath edge ion density ion implantation dose showing the upper and lower walls of the "m"-shaped distribution through the process of injecting the plasma density distribution and the wall at different locations in different time periods ion implantation dose tracking, found that "anode sheath "extension behavior is leading to" m "-shaped distribution of the reasons due to the asymmetry of the trapezoidal shape of the tube," Edge anode sheath "extension to the end of a long trapezoid direction quickly in the initial moment of implantation energy ion implantation is low ion energy with time gradually increased, which is determined by the initial position of the ion. visible trapezoida)

《Neural Network Design》 Martin T. Hagan, Howard B. Demuth, Mark H. Beale 一书中相关matlab演示程序软件包。对于学习很有参考。( Neural Network Design Martin T. Hagan, Howard B. Demuth, Mark H. Beale, a book related to matlab demo program package. Good reference for the study.)

matlab入门程序，新手，代码比较少，以后会多分享。( 最炫民族风 on Matlab)

说明：  别人文章中的BP-PID的S函数，可以试一试(BP-S function)

计算均值以及均方值，很不错的代码，希望对大家的学习有所帮助。(Compute the Mean and Square)

可以用Matlab画坐标系，使用比较方便。(Coordinate system using Matlab painting, more convenient to use.)

Inputs: Two square matrices a and b and a natural number nk

matlab GUI编辑的很好讲解，对初学者很有帮助的文档(matlab GUI，helpful to the newer)

BPSK仿真程序,通过输入有效数值，函数自动计算通信过程，并输出误码率(BPSK simulation program, through effective numerical input, the function automatically calculate the communication process, and output BER)