emap_toolbox_2.0

beamlab的工具箱，学习matlab的朋友可以下载去学习学习！(Toolbox beamlab, learning matlab friends can download to learn to learn!)

matlab中正态分布曲线的产生以及正态分布样本经验分布曲线 EDF 和 分布函数曲线CDF 曲线的对比(matlab in the production and the normal distribution curve normal distribution curve for Empirical distribution function curve of EDF and CDF curve comparison)

说明：  该程序是《数字信号处理上机实验》，有详细的代码和实现原理(The program is a &quot digital signal processing experiment on the computer&quot , a detailed code and implementation principles)

digital signal processing homwork

二维空间中的多边形逼近。确定三个顶点a，b，c并且其函数值按从小到大排列。将二维空间中的多边形三个顶点的函数值按从小到大顺序排列， 判断三点或三点函数值的距离是否小于给定阈值.若小于阈值停止循环，得最优解x0=a(Two-dimensional space polygon approximation. Determine the three vertices a, b, c and its function value in ascending order. The three-dimensional space polygon vertices function values ​ ​ in ascending order, function to determine the three o' clock or three values ​ ​ of the distance is less than a given threshold and if less than the threshold value to stop loop, get the best solution x0 = a)

说明：  对振动加速度信号进行逆傅里叶变换，支持Excel和text读取，希望大家批评指正(The inverse Fourier transform of the vibration acceleration signal supports the reading of Excel and text. I hope you can criticize and correct it)

很常用matlab绘图函数 帮助您绘制大多数常见的matlab函数，很方便(Matlab drawing functions are used to help you draw the most common matlab function, it is convenient)

HHT wvd 小波 等时频分析方法有重要价值(HHT wvd wavelet)

A direct search method instead of a coordinate descent iterative LMI algorithm

基于决策树的五分类算法，可以达到较高的识别率(The five classification algorithm based on decision tree can achieve higher recognition rate.)