DF

用于信号特征提取、信号消噪，快速扩展随机生成树算法，最小二乘回归分析算法，包括广义互相关函数GCC时延估计，信号处理中的旋转不变子空间法，包括最小二乘法、SVM、神经网络、1_k近邻法,包含特征值与特征向量的提取、训练样本以及最后的识别，针对EMD方法的不足。( For feature extraction, signal de-noising, Rapid expansion of random spanning tree algorithm, Least-squares regression analysis algorithm, Including the generalized cross-correlation function GCC time delay estimation, Signal Processing ESPRIT method, Including the least squares method, the SVM, neural networks, 1 _k neighbor method, Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, For lack of EMD.)

基于分段非线性权重值的Pso算法，GPS和INS组合导航程序，比较了软阈值，硬阈值及当今各种阈值计算方法。( Based on piecewise nonlinear weight value Pso algorithm, GPS and INS navigation program, Comparison of soft threshold and hard threshold and today various threshold calculation method.)

这是关于matlab语言学习的经验，其中包括两个txt文档很方便下载，可以在手机上看，写的很好，值得看看。(This is about the matlab language learning experience, including two txt documents easy to download, you can phone point of view, well written, it is worth a look.)

说明：  该代码为灰度模型代码，包含数据导入、参数估计、预测(parameter estimation，Data import，forecast)

code pso-svm matlab for optimazation.

近似熵样本熵对脑电信哈进行特征提取matlab代码(Approximate entropy entropy of brain samples telecommunications Ha feature extraction matlab code)

matlab 主成分分析法程序，以目标威胁度评估为例(matlab principal component analysis procedures in order to target the threat assessment as an example)

亚波长光栅的matlab模拟，可以更改相关参数，实现透射和反射的模拟(Subwavelength grating matlab simulation, you can change the relevant parameters, to achieve the analog transmission and reflection)

地球不转时的星下点轨迹，回归周期1天，可自行设定(Earth does not rotate when the nadir track one day return period)

介绍了数学工具MATLAB绘图的常用命令和格式，有助于快速掌握绘图技巧(Introduces the mathematical tools commonly used commands and MATLAB graphics formats, helps you quickly master the drawing skills)