Finite-element-dynamic-simulation

a code on pattern recognition which has pca as a dimentional reduction and knn as a classifier.

matlab控制利用stk进行实时仿真的连接指令以及一个stk现成的场景仿真(matlab control simulation using real-time connection stk instruction and a ready-made scene simulation stk)

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)

体视化引擎创建了整洁的结构，并给出一个GUI调用的实例。(Volume Visualization Engine to create a neat structure, and give examples of a GUI calls.)

实现LS信道估计的算法，很好的算法，对初学者有很大帮助(LS_MMSE_channel_estimators_for_OFDM)

仿真Alamouti 2发2收空时编码性能，调制方式为QPSK(Simulation for Alamouti 2 rounds of 2 to close space-time coding performance, the modulation method is QPSK)

图像的颜色特征提取，通过选择合适的阈值，将对象从复杂背景中提取出来(Image color feature extraction, by selecting the appropriate threshold, the object is extracted from complex background)

使用matlab制作SLM的会聚球面波相位全息图，欢迎大家借鉴(The use of MATLAB to produce SLM phase hologram of convergent spherical wave is welcomed for your reference.)

single side band modulation using matlab

说明：  天线和电磁波计算的书籍，环境为MATLAB.(Antennas and electromagnetic wave calculation of books on the environment, MATLAB.)