dpcm

snr calculation based on FFT

语音识别程序。有需要的抓紧啦。用MATLAB实现的。(Speech recognition procedures. You need to have the grasp. Achieved using MATLAB.)

此源码是SAR成像中的距离多普勒算法（RDA）的整个仿真过程，相信通过这个仿真有助于理解距离多普勒算法(This source is the distance SAR imaging Doppler algorithm (RDA) of the entire simulation process, I believe that through this simulation helps to understand the range-Doppler algorithm)

This powerful code helps you determine the static voltage stability of a power system. The code is really useful for power engineers.Also it can determine the optimal location of a DG to improve the voltage stability limit of power system.

用经典的pca k邻域方法估计点云法向量的程序，带有matlab gui，使用matlab 2016b编译运行成功，输入点云最好为列向量的txt文件，gui中内置了点云显示模块以及生成的点云法向量显示，并且可以输出法向量到txt文件中。(The program of estimating point cloud vector with the classical PCA K neighborhood method, with Matlab GUI, uses MATLAB 2016b to compile and run successfully, the input point cloud is the best column vector TXT file, the point cloud display module and the generated point cloud vector display in GUI are built in Gui, and the normal vector can be output to the txt file.)

用matlab仿真出HDB3编码以及译码和信源的仿真曲线(Matlab simulation using the HDB3 encoding and decoding and source of the simulation curve)

说明：  在用matlab的时频分析中，不是所有信号的wvd都是可以，一些特殊的信号要用特殊的窗口来得到较好的效果(using Matlab in the time-frequency analysis, not all signals can be wvd, some special signal use special window to get good results)

Arduino-PID-Library-master库函数，可以轻松实现PID控制，是Arduino的函数库。(Arduino-PID-Library-master library function, you can easily realize the PID control is the Arduino library.)

说明：  采用弧长法通过matlab编程求解非线性方程数值解(MATLAB code solving 1D nonlinear equation with the arch-length method.)

教授matlab教程的很好的课件，通过学习这个课件，你会很容易掌握matlab的各种应用(Professor matlab tutorial good courseware, through the study of this courseware, you will be very easy to grasp a variety of applications matlab)