clutter_spetrum

平行束CT重建算法，基于MatLAB语言。(Parallel-beam CT reconstruction algorithm,based on the language MatLAB.)

Butter 函数的应用于低通滤波器，对应的仿真图形与代码(Butter function applied to low-pass filter corresponding to the simulation graphics and code)

把一些Matlab基础教程进行打包，是PDF格式或PPT格式的，希望对初学者有用！(Some basic tutorials for Matlab packaged are the PDF format or PPT format, and I hope it is useful for beginners!)

Kernel principal component analysis (kernel PCA) [1] is an extension of principal component analysis (PCA) using techniques of kernel methods. Using a kernel, the originally linear operations of PCA are done in a reproducing kernel Hilbert space with a non-linear mapping.

HARDLIM - 阈值传递函数 表示close的最上面的矩阵； 用变量s来表示open的最上面的矩阵(HARDLIM- threshold transfer function that close the top of the matrix express variable s to open the top of the matrix)

最小二乘法、最佳均方逼近、随机拟合及其MATLAB程序(Least square method, the best mean square approximation, random process fitting and MATLAB)

程序内容是对信号的波束域检测，其中阵元数32，信号为宽带信号(Program content is the signal beam field testing, which array element number 32, the signal is wideband signals)

This is some kind of graph program for pattern classification, namely HP (Hyper box).

matlab上实现的模糊聚类算法，相当有用，是一个聚类工具箱。(matlab on the fuzzy clustering algorithm to achieve very useful, is a cluster toolkit.)

Burrows-Wheeler转换,也称为块排序，是80年代提出来的一种新型压缩方法，对文本有很好的压缩率。(Burrows-Wheeler Transformation,also called Block Sorting)