intensitytransformation

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)

This is matlab tutorial book

由磁悬浮小球的状态空间模型计算出其鲁棒控制器，并在simulink模型中对鲁棒控制器的性能进行了验证。(Magnetic levitation ball from the state-space model to calculate the robust controller and in simulink model for robust controller performance is verified.)

说明：  AR谱估计函数，内置基于FPE准则、AIC准则以及CAT准则判定AR阶数(AR spectral estimation function, built-in standards-based FPE, AIC criteria and guidelines to determine the AR order of CAT)

CEC2010测试函数代码，由C++和Matlab 2010编写而成。(CEC2010 test function code, and by the C++ written in Matlab 2010.)

粒子群算法的matlab源代码，绝对可用！(Particle swarm optimization algorithm source code, absolutely free!)

OFDM系统同步仿真的一个经典算法，避免SC算法产生的平台(OFDM system simulation of a classic synchronization algorithm, to avoid SC algorithms platform)

信号编码使用hdb3码，其解码程序，可以防止连0和连1对信号造成的干扰(hdb3 code decoding process)

this code implementation radar.

这五个源代码介绍了如何创建matlab GUI以及各种控件的放置调用(The five source code shows how to create a matlab GUI and the placement of the various controls calls )