ch6example1

同样是遗传算法 从 c和matlab 两方面解决(From the same genetic algorithm to solve both c and matlab)

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)

C语言与MATLAB接口：编程与实例，是一本非常好的书(C language and MATLAB interface: examples of programming and is a very good book)

说明：  实现抗各种攻击的matlab数字水印，尤其是几何攻击，包括剪切、旋转。有嵌入，提取，攻击，检测过程。(realized a new watermarking algorithm which can resist all kinds of attacks.)

记忆深度修正函数的改进 Volterra模型，并对一款 Doherty功率放大器 进行线性化预失真(Memory depth correction function improvement on the model, and carries on a Doherty power amplifier predistortion linearization )

一些有关fft 的东西，与大家共同欣赏。谢谢，大家的指正。(something about fft)

nsga2经典进化算法 matlab编写。运行正常(nsga2 classic evolutionary algorithm)

这是一个Matlab开发的数字波束形成源代码，仿真正确(This is a developed Matlab source code for digital beamforming, simulation correctly)

基于matlab的gps系统定位仿真，模拟伪距测量结果，进行用户定位计算(Gps system based on matlab the positioning simulation, analog pseudorange measurements, user location)

这是一个用模极大值算法对一维信号去噪的程序,信号重构采用经典的交替投影法.(This is a use of modulus maxima algorithm of one-dimensional signal de-noising procedure, signal reconstruction using the classical alternating projection method.)