three_phase_motor_speed_frequence

说明：  FracLab的一些源代码，FracLab是用于分形分析的toolbox(some of the source code in FracLab, FracLab is toolbox for fractal analysis)

DFS判断两点间的连通性，即1与n间的连通性(DFS to determine the connectivity between two points, that is between 1 and n connectivity)

mod boost cover.eff high

DTMF(双音多频)是用两个特定的单音频组合信号来代表数字信号的一种编码技术。两个单音的频率不同，代表的数字或实现的功能也不同。可采用8种频率代表电话机上的16个按键，10个数字键0~9和6个功能键*、#、A、B、C、D。具体的频率组合见参考书。要求： (1) 根据键盘输入的符号，利用MATLAB产生对应的DTMF信号；(2) 分别利用FFT算法和Goertzel算法计算该DTMF信号的频谱并画出频谱图；(3) 根据频谱图确定DTMF信号所代表的符号是否和输入的符号一致。 (DTMF (Dual Tone Multi-Frequency) is a single with two specific combination of audio signals to represent a kind of digital signal coding techniques. Two monosyllabic different frequency, on behalf of the numbers, or the realization of the functions are also different. Eight kinds of frequency of use on behalf of telephone on the 16 keys, 10 numeric keys 0 ~ 9 and 6 function keys*,#, A, B, C, D. The frequency of specific composition of reference books. Requirements: (1) According to the keyboard input of symbols, the use of MATLAB have a corresponding DTMF signal (2), respectively, using FFT algorithm and the Goertzel algorithm DTMF signal spectrum and frequency spectrum draw (3) According to DTMF signal frequency spectrum to determine represented by symbols and input symbols unanimously.)

多载波系统中的交调失真，输入信号是频率在11Hz和 14Hz的双音带通信号。(Multicarrier system intermodulation distortion, the input signal is frequency 11Hz and 14Hz dual tape communication number.)

First keep in mind that this is not a Matlab tutorial. This is just a list of tricks I have found useful while writing the toolboxes available on the Matlab Central repository.

随机信号分析MATLAB的重要的仿真实例，有几个常用的仿真源代码，希望能够对修这门课的学生有用。(The document contains some useful functions some important Simulation examples of random signal and i think it is Practical。)

说明：  MATLAB中plot函数的典型应用，适合初学者熟悉绘图函数(MATLAB plot function in a typical application, suitable for beginners familiar with the drawing functions)

利用matlab做的带电网电压反馈控制的单相逆变器模型，分享给大家(Matlab to do with the grid voltage feedback control of single-phase inverter model for everyone to share.)

Pegasis protocol in matlab for routing analysis