xitong

说明：  内附几十种小程序，有状态机、比较器、波形发生器、乘法器、加法器、步进电机控制器等，希望大家能用的上。(Containing dozens of small programs, for reference，This is about FPGA,a tool ,we can study,but in ourselves.)

now some matlab code for fem is here.pls download it

说明：  载波恢复技术及其相关算法，比较全面，拿去做参考，有点详细(Carrier recovery techniques and related algorithms, more comprehensive, taking reference to do a bit more)

电话拨号音的合成与识别 基于对电话通信系统中拨号音合成与识别的仿真实现，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。使其对电话通信系统拨号音的合成与识别有个基本的了解。 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。(Synthesis and recognition telephone dial tone Based on telephone communication system dial tone Simulation synthesis and recognition, mainly related to the basic principles of the main methods telephone dial tone synthesis and recognition, using MATLAB software and the FFT algorithm for synthesis and recognition telephone communication system dial tone. And further use of MATLAB graphical user interface is simple and intuitive GUI making analog interface. Synthesis and recognition make telephone communication system dial tone have a basic understanding. Can be different the fundamental frequency of matrix synthesis 0 9 dial tone different keys, and can be correctly identify different dial tone, dial tone achieved by the parsed telephone number of processes.)

说明：  此为机器学习中的常见算法的matlab代码，代码注释详细，易上手(This is a common algorithm in machine learning matlab code, code comments in detail, easy to use)

此matlab例程用于验证离散时间傅里叶变换的调制性质。(Matlab routines used to validate the discrete-time Fourier transform the nature of the modulation.)

Matlab code for power system analysis book

1. Transfer function to state space model transfer function to state space A=[1 1 1] B=[1 6 11 6] [A,B,C,D]=tf2ss(num,den)

较为详细的介绍倒谱法，传统倒谱法以及对倒谱法的改进算法，以及对倒谱法进行MATLAB实验(A detailed introduction of cepstrum method, the traditional cepstrum method, and the cepstrum method of improved algorithm, and MATLAB experiments of cepstrum method)

主要功能是对数据进行自相关处理，然后通过带通滤波后进行解调，得到数据的主要特征。(The main function is to carry on the data correlation processing, and then through the band-pass filter after demodulation, get the main features of the data.)