periodogram

机车制动速度提取分析,分析刹车，减速，加速，制动速度以及加速度的变化(Locomotive brake speed extraction and analysis, analysis of braking, deceleration, acceleration, braking and speed of change of acceleration)

求解约束优化，非线性最小二乘优化，线性优化，整数规划，二次规划等最优化问题(Solving constrained optimization, nonlinear least squares optimization, linear optimization, integer programming, quadratic programming and other optimization problems)

说明：  使用HOPfield神经网络求解参数线性约束规划，此代码为原创，可直接运行。(Use HOPfield Neural networks for solving parametric linear constrained programming, the code for the original, can be directly run.)

mitmatlab工具箱，有各种机器学习的算法(mitmatlab toolbox, there are a variety of machine learning algorithm)

任意直导线周围的磁场分布，使用matlab编制(Arbitrary distribution of magnetic field around the wire straight)

三维的分数阶傅立叶变换，用于非平稳信号处理(the 3D Fractional Fourier Transform)

基于matlab环境编译的创建人脸数据库，特征提取，人脸识别源码程序，运行时识别率较高。( based on MATLAB environment， creates face database, Feature extraction ，face recognition program,having a high recognition rate)

说明：  有偏卡尔曼滤波器可以用来消除无线定位中的非视距误差,本程序加入了非视距检测模块，对于NLOS使用有偏卡尔曼滤波，对于LOS使用标准卡尔曼滤波(Biased Kalman filter can be used to eliminate the wireless location in NLOS error, the program joined the non-line-detection module, for use NLOS biased Kalman filter, using the standard Kalman filter for the LOS)

一种系统辨识方法，基于辅助模型对输出误差系统进行未知参数辨识(AM_FG.m for the output error models)

simulink学习教材，快速学会simulink的基本使用(Simulink learning materials, basic use quickly learn to simulink)