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MATLAB CODE FOR ann WHCIH USED TO DETECT VOICE FOR MANY STUDENTS

用matlab实现Floyd和Wallshell算法，基本功能都有(Floyd and Wallshell using matlab algorithm, the basic function)

本文件是关于自适应滤波算法的matlab仿真，其中对LMS、RLS等算法给出了具体的程序。(This document is on adaptive filter algorithm of matlab simulation, including LMS, RLS) give a specific procedures. )

matlab数字信号处理工具箱，包含数字信号处理常用的一些函数(matlab diginal signal processing tool box and include some useful function.)

VB与Matlab混合编程在步进电机曲线插补运算中的应用,希望对大家有帮助！(Mixed programming in VB and Matlab curve interpolation step motor operation in the application, we want to help!)

说明：  关于大型机的内容，是cobol语言，大家可以仔细研习(Content on the mainframe is the cobol language, we can carefully study)

用窗函数法设计FIR带通滤波器。指标：低端通带截止频率wlp=0.35π 低端阻带截止频率wls=0.2π。高端通带截止频率whp=0.65π 高端阻带截止频率whs=0.8π。 (Design of FIR with window function bandpass filter target: low-pass with cutoff frequency wlp = 0.35π low stopband cutoff frequency wls = 0.2π passband cutoff frequency of high-end whp = 0.65π high stopband cut-off frequency whs = 0.8π)

用于自学Matlab的一些小的简单的程序，里边涵盖了许多数学问题(For self-study a number of small simple Matlab program, covers a lot of math problems inside)

如何计算矩阵数据的协方差矩阵。还有在什么情况下只能计算均值、方差，而不能计算协方差，什么情下，只能计算协方差，但不能计算协方差矩阵。(How to calculate the matrix data covariance matrix. And under what circumstances can only calculation mean, variance, and not calculation covariance, what feeling, can only calculation covariance, but not calculation covariance matrix.)

说明：  算法是基于灰狼优化算法GWO优化VMD，可以大大提高VMD的分类准确率，提高优化时间。(This algorithm is based on GWO optimization VMD, which can greatly improve VMD classification accuracy and optimization time.)