array-based-physical-model

method for half-toning an image

说明：  this file IS ABOAT UNSCENTED KALMAN FILTER.

经验模态分解的程序，由其他学者提供，使用方便高效。(emd programme)

信号的短时傅立叶变换，paper2_2_1为主程序，仿真不同窗长下短时傅立叶变换的时频聚集度。stftxz为修正的短时傅立叶变换。(Short-time Fourier transform signals, paper2_2_1 main program, the simulation under different window length short time Fourier transform of the frequency of aggregation. stftxz to correct short-time Fourier transform.)

运用粒子群优化算法对ARMA(p,q)模型的阶数进行优化是可行的，且利用优化后的ARMA模型对航空发电机状态趋势进行分析的结果十分准确，与原始数据所表现出的航空发电机状态变化趋势基本一致。经计算，此时分析结果的平均相对误差较小，仅为1.38 ，与优化前构建的ARMA模型相比，平均相对误差降低0.23个百分点，优化效果明显。(Using particle swarm optimization algorithm to optimize the order of the ARMA (p, q) model is feasible, and the use of the results of the ARMA model optimized air generator status trends analysis is very accurate, and the raw data showed aviation the generator status consistent trend. Calculated analysis of the results, the average relative error is small, only 1.38 , compared with the the ARMA model built before optimization, average relative error is reduced by 0.23 percentage points, to optimize the effect is obvious.)

matlab教程，关于建立二维图形、三维图像以及仿真动画等的教程(matlab tutorial, on the establishment of two-dimensional graphics, three-dimensional images, and simulation animation tutorial)

高阶累积量的music算法，包括多种music算法之间的对比分析(Cumulant music algorithm)

Matlab 有限元分析 LTQN 很少见FDTD MOM(Matlab finite element analysis LTQN rare)

惯性导航系统仿真用来描述导航系统的导航方法，最后做出一系列的仿真图形来判断导航的效果。(Inertial navigation system is a common kind of navigation system.It is widely used in a lot of fields including military and civil applications.)

城市切换功能,点击城市可以弹出其他城市进行切换(the demo is to change city)