extract_feuter

here is the code for serial communications

实现了一类三涡卷混沌吸引子的同步，参考文献《一类三涡卷混沌吸引子产生与同步的研究》(To achieve a class of three-scroll chaotic attractors simultaneously, references, " a class of three-scroll chaotic attractors generation and synchronization of research" )

《node入门》是一本较好的入门级教材，本人起初也使用，通俗易懂。希望对大家有所帮助。("Node Getting Started" is a good entry-level textbook, I first use, easy to understand. We want to help.)

《MATLAB R2008图形与动画编程实例教程》的源代码--第四章(" MATLAB R2008 examples of graphics and animation programming tutorial" source code- Chapter IV)

采用功率谱方式并用AR线性滤波方法生成脉动风速时程数据，能用于结构风载荷的计算。(Using power spectrum and AR linear filtering method to generate fluctuating wind speed time series data, can be used in structure wind load calculation.)

本程序实现不用对数据进行2抽取和2插值的快速小波分解,只需对滤波器进行2插值即 可，所以不要求数据的长度为2的幂次方，共分解了3次，然后进行了重构！！！(This procedure achieved without the data extraction and 2 Fast 2 interpolation wavelet decomposition, only 2 of the interpolation filter that can be, so the data length does not require a power of 2, a total break down three times, then refactored! ! !)

这是现代通信系统书上付的程序 包括了通信的方方面面 非常全面(This is a modern communication system, paid for the book procedures, including all aspects of communication is very comprehensive)

追逐问题是现实生活中的常见问题,本文就三人绕正三角形的追逐问题建立起了两个数学模型:一个充分应用运动的周期性首先给出了三人共边的充要条件,然后直接给出在一个周期内三人共边的次数及起止时刻,另一个则利用初等数论的方法给出了三人共边的另一个充要条件 利用matlab长于计算和强大的绘图功能,本文分别给出了求解两个模型的matlab程序,通过动画仿真演示三人绕正三角形的追逐模型,并给出三者共边的时间起止点和共边的次数。 更多还原 (The problem is that in real life the pursuit of the common problems, the paper chase on three questions about the triangle established two mathematical models: a full application of the cyclical movement Firstly, the necessary and sufficient conditions of the three sides, and then directly within a given period of three sides of the starting and ending times and moments, and the other using elementary number theory approach gives another three necessary and sufficient conditions of the edge using matlab longer computing and powerful graphics capabilities, this paper two models are given for solving matlab program, triangle chase through animated simulation model demonstrates trio around and gives the time of the beginning and ending points of the three sides and the number of edges. More Restore)

图像处理滤波，而认为沃尔沃仍然认为而入 人饿(it is not very good)

说明：  该程序用于在实验中所测量的振动、噪声、水声以及数值模拟监测所得到的信号，实现信号的频谱分析。(The program is used to measure the vibration, noise, underwater sound and the signal obtained by numerical simulation monitoring in the experiment to realize the spectrum analysis of the signal.)