koch_internship

this is simulation for logistic map using matlab to simulate the behavior of logistic map

matlab课程教学资料，共大家共同学习，大家一起交流学习(matlab teaching information of common learning, with exchange of learning)

实现卡尔曼滤波功能，建立了一个对位置观测的系统，同时加入了速度噪声，完成了Matlab的仿真。(Kalman filtering, established a system of observation position, while adding speed noise, completed the Matlab simulation.)

数值解与理论解对比可知，四阶龙格-库塔法的精度已经很高，用它来解一般常微分方程已经足够了。(Numerical comparison shows that the theoretical solutions, Runge- Kutta method has high accuracy, and use it to solve ordinary differential equations general enough.)

各种电器元件标签inductor capacitor resister(Various electrical components labels)

PCA/SVM算法实现图像分类，分类准确率可到达90%(Image classification by PCA/SVM algorithm)

it is algo por neural network pid controller anation and optimization algo

作为算法实现的应用,对光子晶体光波导的电磁耦合效应进行了数值仿真研究,结果证实:波导耦合区域内不同半径比介质柱所导致的结构变化将造成耦合长度的改变,且其耦合关系曲线具有平稳区与迅变区两类不同特性的变化范围区间。(As the algorithm' s application, on the photonic crystal waveguide for electromagnetic coupling numerical simulation, results show: waveguide coupling region different than the dielectric cylinder radius of the structural changes caused by the coupling length will cause a change, and its coupling curve has a smooth area with the fast-changing area characteristics of two different range interval.)

数值代数常用变换，内部含有Gauss，cholesterol，household，givens,QR分解等变换(Common transform numerical algebra, contains an internal Gauss, cholesterol, household, givens, QR decomposition transformation)

Transient stability analysis of distribiuted system with DG