atom1

MatLab入门经典英文教程（pdf版）,介绍如何使用MATLAB,对于英语阅读能力教强的人阅读.(MatLab Introduction to the classic English tutorial (pdf version), describes how to use MATLAB, for English reading ability and strong teaching people to read.)

扩展卡尔曼在定位中的一个例子,在滤波分析中很实用(Extended Kalman positioning an example, very useful in filtering analysis)

小波变换进行变速箱故障诊断 首先将s1和s2信号时域谱（s1代表维修前的振动信号，s2代表维修后的振动信号），画出来进行对比，会发现s1信号的振动幅值会比较高；然后对s1和s2分别进行小波分解并画出各层的时域谱，只对比s1和s2分后的最高时域谱，s2更加的具有周期性，且幅值较小，s2周期性不够明显，且振动过于密集。分析完时域谱后开始分析频谱，首先对原信号s1和s2fft转换，得到频谱图，如图，然后再对小波分析后高频部分进行fft转换，做出频谱图。对比后我们发现，在f 2375HZ出（也就是齿轮的啮合频率），s1信号频谱幅值会有急剧的升高，然后，其谐波的幅值也会增大。所以可以推断出该维修前的增速箱的齿轮可能出现问题。(Gearbox fault diagnosis based on wavelet transform s1 and s2 first time domain signal spectrum (s1 behalf of the vibration signal before maintenance, vibration signal s2 representative of repaired), drawn comparison, you will find a signal s1 vibration amplitude will be higher then s1 and s2 respectively wavelet decomposition and draw the layers of time-domain spectrum to only a maximum time domain spectroscopy s1 and s2 points after, s2 is more cyclical and smaller magnitude, s2 cyclical enough obviously, and the vibration is too dense. End domain spectral analysis after the beginning of the spectrum analysis, the first of the original signal s1 and s2fft conversion to give the spectrum, as shown, and then after the high frequency part of wavelet analysis fft transformation to make spectrum. We found that after the comparison, at f 2375HZ out (i.e. the gear mesh frequency), there will be a sharp increase in the amplitude spectrum of the signal s1, and then, the amplitude of the ha)

说明：  这个模型可以在MATLAB中，为数据库的进入，提供时间倒数，以防止过多地试密码，从而提高系统的保密性( TIMEOUT = LOGINTIMEOUT(FIRSTARG,SECONDARG) returns the current value of time allowed for a connection to a database to be successful. FIRSTARG, an optional argument, is a string that specifies the JDBC driver to be used establishing the database connection. SECONDARG, an optional argument, is an integer that specifies the length of time the driver will attempt to make a connection to a database. If FIRSTARG is not specified then the default JDBC/ODBC bridge is used to establish the connection to the database. If function is used without arguments then the current time out value is returned. )

蚁群算法优化PID控制器,采用三种评价指标函数IAE、ITAE、ITSE来进行对比分析.(Ant colony optimization algorithm PID controller, using three evaluation function IAE, ITAE, ITSE for comparative analysis.)

This code permit to simulate the sound received on microphones given their positions, the positions of the sound source(s), the frequency sampling of acquisition and the speed of sound. Assuming anechoical conditions.

利用matlab软件对心电信号进行小波分解和降噪处理，包含原始数据(Wavelet decomposition and noise reduction processing of the ECG signal using matlab software contains raw data)

AOK自适应时频分布算法， 是基于自适应最优核的时频分析软件，该软件包括自适应时频分析的计算内核及Matlab 交互脚本。计算内核是基于C 编译的，并针对Intel P4、AMD 作了不同优化；(based on Adaptive optimal kernel time-frequency analysis software based on Adaptive optimal kernel time-frequency analysis software)

说明：  本文档是用MATLAB仿真各种信号的波变换(This document is a variety of signals using MATLAB simulation of wave transformation)

DMC Algorythm in SIMULINK