ECG_Learning_Center

在matlab环境下，使用HMM对语音信息进行处理！(In the matlab environment, the use of HMM for speech information processing!)

对基带数字通信的位同步过程进行了仿真，采用Gardner算法，没有用插值。符号用SRRC进行脉冲成形，环路滤波器没有用PI回路，是简单的alfa，1-alfa低通滤波，NCO调整也比较简单。(Baseband digital communications for the bit synchronization process of the simulation, using Gardner algorithm, did not use interpolation. Carried out with SRRC pulse shaping symbols, did not use PI loop filter circuit is a simple alfa ,1-alfa low-pass filter, NCO is also relatively simple to adjust.)

距离保护傅里叶模型算法 使用图基滤波器 控制阻抗轨迹显示范围 在阻抗平面画出阻抗圆特性、整定阻抗直线特性和短路阻抗轨迹( Distance protection algorithm using the Fourier model-based filter control chart shows the range impedance locus in the impedance circle characteristic impedance plane plot, setting characteristics and short-circuit impedance line impedance locus)

说明：  利用MATLAB语言编写的直流电动机调速特性测试程序和模型分析(The use of MATLAB language features of the DC motor speed control testing procedures and analysis)

说明：  可以转动的风扇:rotx_.m,roty_.m,rotz_.m为旋转函数，在命令窗口调用fan_rot.m即可获得动态的旋转风扇的图形。(can turn on the fans : rotx_.m, roty_.m, rotz_.m for rotation function, called the order window fan_rot.m Get rotating fan dynamic graphics.)

通过对视频的适当修改，运用matlab软件实现视频图片提取。(chang video into image with matlab)

ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING MATLAB CODE

matlab的工具，常用的工具，非常有用的(matlab tools, commonly used tools, very useful)

这是一个关于卷积编码和Viterbi译码的Matlab程序，现在把它们放在这里，希望对需要的人有些帮助。(This is a convolution coding and Viterbi decoding of Matlab procedures, now put them in here, I hope those who need some help.)

用FFT分析离散时间周期信号的频谱实例，利用FFT分析离散时间周期信号的频谱，通过实验理解分辨率的概念和栅栏效应。(With a the FFT analysis the the frequency spectrum instance of of the discrete-time periodic signal, the use of the FFT analysis the the frequency spectrum of the discrete-time periodic signal, through the experiment understanding of the the the concepts and the picket fence effect of of the resolution.)