raygen

说明：  matlab编写的FFT变换和滤波的程序(this is matlab code for fft transfering and filtering.)

backstepping方法设计例子，对于初学者为不错的样例，我本人就是通过这些练习起来的。很有效(The backstepping method design examples for beginners is a good sample, I was up by these exercises. Very effective)

理解掌握 Poisson过程的理论，了解随机过程的模拟实现技术，学习并掌握在实际中如何检验给定的随机过程是否为Poisson过程 (Poisson process, understand and grasp the theory of stochastic processes to achieve understanding of simulation techniques to learn and master in practice how to verify whether a given stochastic process for the Poisson process)

本书系统介绍matlab图论算法，图论在规划问题中有大量灵活应用。本书适合初学者，对于数学建模参赛者也有裨益。(This book describes the matlab graph theory algorithms, graph theory, a large number of flexible application programming problem. This book is suitable for beginners, but also for the benefit of mathematical modeling contestants.)

Communication system with networks

This is modeling VSC and PLL

基于matlab/simulink 编写RS232串口调试软件(to write the RS232 serial communication program by matlab/simulink.)

new smoother to human voice file

电梯群控系统的仿真，顾客的到达服从泊松流分布，上行还是下行是随机的，层数也是随机的，matlab仿真，有输出数据(Elevator group control system simulation, the customer' s arrival Poisson distribution flow, the upstream or downstream is random, the number of layers is random, matlab simulation, the output data)

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.)