houghline1

现有一个信号：x(n)=1+cos(π*n/4)+ cos(2*π*n/3)设计及各种数字滤波器以达下列目的： 低通滤波器，滤除cos(2*π*n/3) 的成分，即想保留的成分为1+cos(π*n/4) 高通滤波器，滤除1+cos(π*n/4) 的成分，即想保留的成分为cos(2*π*n/3) 带通滤波器，滤除1+cos(2*π*n/3) 的成分，即想保留的成分为cos(π*n/4) 带阻滤波器，滤除cos(π*n/4) 的成分，即想保留的成分为1+cos(2*π*n/3) 1. 用MATLAB命令butterord求除滤波器的阶数,用命令butter设计各滤波器；画出滤波器幅度和相频相应 取各滤波器的系统函数H(z)。 (an existing signal : x (n) = a cos (* n/4) cos (2** n/3) design and digital filter to achieve the following objectives : low-pass filter, filter cos (2** n/3) the ingredients that want to retain an element of a cos (* n/4) high-pass filter, a filter cos (* n/4) components, namely to retain the element of cos (2** n/3) band-pass filter , a filter cos (2** n/3) components, namely to retain the element of cos (* n/4) band stop filter, the filter cos (* n/4) components, namely to retain the ingredients for a cos ( 2** n/3) 1. MATLAB order butterord except for the band Filter, using the order of the filter design butter; paint Filter magnitude and phase frequency of the corresponding filter system function H (z).)

产生噪声调频信号............(Generate noise FM signal)

基于图和半监督的学习方法 graph-based and semi-supervised learnign(graph-based and semi-supervised learning)

some image matching and mosaic

图论算法，里边的内容包括最短路径，最小生成树，最大流，遍历的算法及详细讲解。(Graph algorithms, including inside the shortest path, minimum spanning tree, maximum flow, traversal algorithms and detailed explanation.)

Wigner-Ville分布相关程序及函数(Wigner-Ville distribution-related procedures and functions)

这5个小程序分别为：用Monte Carlo随机法圆柱相交体的体积；用刘徽割圆法计算pi；梯形法.辛普森法计算圆周率；蒲丰掷针实验程序；线性函数的迭代(This five small programs were: using Monte Carlo random method cylinder intersects the volume cyclotomic method with Liu Hui pi trapezoidal method Simpson method to calculate pi Buffon throw needles experimental procedures linear function of iteration)

说明：  Matlab中如何实现二维和三维隐函数绘图 内含实例(Matlab, how to achieve two-dimensional and three-dimensional graphics containing examples of the implicit function)

algo de fourier para entretenerse

说明：  MATLAB5_X程序设计语言.pdf 用于matlab程序设计(MATLAB5_X programming languages. Pdf for matlab programming)