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使用MATLAB编程，示意随机信号功率谱估计算法中的welch算法和Thomson多窗估计法MTM在估计随机信号功率谱时，参数改变对频谱图的影响。(This program indicate random signal power spectrum estimation using Welch algorithm and Thomson MTM estimation algorithm.)

matlab 7.0上册，还有下册，大家一起下载吧。很有用的数学工具。(matlab 7.0 on the books, as well as under the list and we can work together to download it. Useful mathematical tool.)

本文主要阐述了DTMF的原理及如何在MATLAB上产生DTMF信号，主要涉及到电话拨号音合成的基本原理及识别的主要方法，利用 MATLAB 软件以及 FFT 算法实现对电话通信系统中拨号音的合成与识别。并进一步利用 MATLAB 中的图形用户界面 GUI 制作简单直观的模拟界面。 能够利用矩阵不同的基频合成 0 － 9 不同按键的拨号音，并能够对不同的拨号音加以正确的识别，实现由拨号音解析出电话号码的过程，完成对电话拨号音系统的简单的实验仿真。-This paper described the principle and how DTMF in MATLAB to generate DTMF(This paper describes the principle of DTMF and how MATLAB to generate DTMF signals, mainly related to the telephone dial tone and identification of the basic principles of synthesis of the main method, using MATLAB software, and the FFT algorithm to the telephone communication system, the synthesis and identification of dial tone . And further the use of MATLAB' s graphical user interface simple and intuitive GUI make the analog interface. Able to use a different fundamental frequency matrix synthesis of 0- 9 different button dial tone and can be different correct identification of dial tone to achieve by the dial tone of the process of parsing a telephone number to complete the telephone dial tone system, a simple experiment simulation.-This paper described the principle and how DTMF in MATLAB to generate DTMF)

永磁直驱风电机组机侧变流器控制simulink仿真(Permanent magnet direct drive wind turbine machine side converter control simulink simulation)

该源码为matlab6.5图形图像处理书籍的配套资料。(The source code for the graphic image processing books matlab6.5 supporting information.)

说明：  M AT L A B有一些命令可以来控制M AT L A B语句的执行，如条件语句、循环语句和支持用 户交互的命令，本章将介绍这些命令.(M AT LAB some commands to control the implementation of M AT LAB statements, such as conditional statements, loop statements, and support the use of Users interact with the command, this chapter will describe these commands)

说明：  这是一个两关节机械手的数学模型，matlab文件(This is a two joint manipulator mathematical model, matlab file)

X射线检测中黑度与透照参数分布曲线的最小二乘拟合(X-ray inspection of the least-squares fit blackness and Radiographic parameters distribution curve)

基础卡尔曼滤波。附有滤波初始条件，适合初学者(Basic Kalman filter. With filter initial conditions, suitable for beginners)

自相关检测方法是利用信号和噪声在相关域上的差别来构造检测器的。自相关检测是将信号与自身延迟一个时延后的信号作相关处理，或用双通道接收机的输出进行相关，得到扩频信号的自相关函数(Auto-correlation detection method is the use of signal and noise in the relevant field to construct the difference detector. Autocorrelation test is a time delay signal and its delayed signal for correlation, or the output of dual-channel receiver, associated, are spread spectrum signal autocorrelation function)