反馈神经网络

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)

迭代自组织数据分析，通过matlab代码，与理论分析结果相比，应用小区域方差对比，程序简单，基于人工神经网络的常用数字信号调制，最大似然（ML）准则和最大后验概率（MAP）准则。

有限单元集成刚度程序，用于计算常见单元刚度矩阵及集成。(beamassemble .ect.)

matlab编制的通过卷积完成特征点匹配的软件(match image feature points by correlation)

说明：  小波域数字水印嵌入程序。 实现对数字图像进行水印嵌入和检测。(Digital watermark embedding in wavelet domain. Implementation of digital image watermark embedding and detection.)

用matlab进行数据的预处理 内含详细的代码(Data preprocessing with detailed code)

matlab可以看作小波前期工作的平台。它忽略了其他架子上的修饰，直接进入底层实现数值计算分析(wavelet Matlab can be seen as preparatory work for the platform. It ignores the other hangers tinkering with the direct access to the underlying implementation Numerical Analysis)

matlab 内部培训资料，自动代码生成和物理建模入门资料(matlab internal training materials, automatic code generation, and physical modeling entry)

matlab Welch法实现谱估计，基本原理验证(matlab Welch method to achieve spectrum estimation, the basic principles of validation)

线性预测分析是最有效的语音分析技术之一，在语音编码、语音合成、语音识别和说话 人识别等语音处理领域中得到了广泛的应用。语音线性预测的基本思想是：一个语音信号的 抽样值可以用过去若干个取样值的线性组合来逼近。通过使实际语音抽样值与线性预测抽样 值的均方误差达到最小，可以确定唯一的一组线性预测系数。(Linear predictive analysis is one of the most effective voice analysis technology has been widely applied in the field of speech processing speech coding, speech synthesis, speech recognition and speaker recognition and the like. The basic idea of ​ ​ linear prediction of speech is: a voice signal sample values ​ ​ can be approximated by a linear combination of a plurality of sample values ​ ​ of the past. By making the actual speech sample mean square error of the value of the smallest linear prediction sample values, to determine a unique set of linear prediction coefficients.)