zxfj_frame

说明：  经典功率谱估计welch例子，可以用于入门学习。(Welch classic example of the power spectrum estimation, can be used for getting started.)

class a chopper.is also called as step down chopper mostly used in pv array characterstics for the mppt algorithms

a paper about the power sustem ieee file

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)

matlab遗传算法工具箱使用.pdf matlab遗传算法工具箱使用.pdf(matlab genetic algorithm toolbox to use. pdf matlab genetic algorithm toolbox to use. pdf)

SSF算法子空间拟合的图形设计，信号 噪声子空间拟合的算法(SSF)

语音信号处理 包括语音信号的同态处理和先行预测编码分析（LPC） 隐马尔可夫模型的分析（HMM）等(The voice signal processing includes a voice signal the homomorphic processing and the first prediction coding analysis (LPC) analysis of the Hidden Markov Model (HMM))

Matlab的中文帮助电子书，里面讲解的比较详细，对初学者有很好的帮助。(Matlab help the Chinese e-books, which explain in more detail, there is a good help for beginners.)

关于svc的matlab仿真模型，闭环的SVC模型(close-loop svc modulation)

说明：  利用经典BP网络逼近一个多输入多输出的函数(The classical BP network to approach a multi-input multi-output function)