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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).)

book for kalman filter using matlab image processing

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confun fundamental code

matlab数字图像处理技术，1.2图像的矩特征，很实用(matlab digital image processing technology, features 1.2 image moments, it is practical)

This function Skeleton will calculate an accurate skeleton (centerlines) of an object represented by an binary image / volume using the fastmarching distance transform.

For beginners with a reference value, Rotating machinery 2-d holographic spectrum calculation, Chaos-based simulated annealing algorithm.

MATLAB前推回代法配电网潮流，节点数任意修改(MATLAB- Power Flow of Distribution Network Based on Forward and Backward Substitution)

PID ABS的控制系统，参数已经整定完毕，采用的是单轮模型(PID ABS control systems, parameter tuning has been completed, using a single wheel model)

伪逆分类法的matlab实现，包含训练和测试部分(Pseudo-inverse classification matlab realization, including training and testing parts)