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说明：  介绍了一种荃于MATLAB数字信号处理工具箱、MATLAB数据分析和MATLAB圈形对 象的时变数字信号瞬时频率枯计方法。这种方法利用时频分析结果来估计信号的麟时频率，其 中涉及时频分析、滤波、曲线拟合辞多种处理过程。处理过程的编程实现封较于用户界面上作 为文互工具的控件中，由用户通过交互界面逐步完成估计瞬时预率的工作.(Tsuen introduced a digital signal processing in the MATLAB toolbox, MATLAB and MATLAB data analysis of ring-shaped object digital signal time-varying instantaneous frequency of dry method. This method using the results of time-frequency analysis to estimate the signal frequency CHU, which involves time-frequency analysis, filtering, curve fitting a variety of speech processing. Programming process to achieve closure on the user interface than the text of each other as a control tool, by the user interface step by step through the completion of pre-estimated instantaneous rate of work.)

说明：  飞机定位问题在航空的应用是十分广泛的，此源码是用matlab实现的，能够准确模拟出飞机在空中的定位。(positioning of the aircraft in the aviation application is very extensive, the source is realized using Matlab, to accurately simulate aircraft in the air positioning.)

Program for Correlation on big data

xsshould upload at least five sourcecodes

functions not separated by semicolons are errors in version 120 and higher.

该逻辑蒂斯回归模型matlab程序用于数据多分类，适用于有监督，学习型模型。(the matlab code of logistic regression used for data multi-classification. it is a kind of unsurpervisor study.)

matlab 与VC混合编程 PDF格式 刘维编著 还算清晰，有兴趣的朋友下载下来看看(matlab Programming PDF format mixed with VC Liu Wei edited fairly clear, interested to see friends downloaded)

Gibbs sampling算法,生成Ising model的随机样本

说明：  利用Matalab软件分别编写子函数实现数字图像压缩及解压缩处理，并统计分析压缩处理算法所能够实现的压缩比及解压图像和原始图像间的均方根误差。(Functions were written by Matalab software for digital image compression and decompression processing, and statistical analysis of compression algorithms to achieve the compression ratio and decompression images and root mean square error between the original image.)

[的X，Y和Z] = cylinder2（的x，Y，Z轴，俄，氮，氧） 向量X，Y，Z轴定义圆柱面中心线 和矢量r定义圆柱面半径，并已 为的x，y，z的长度相同 N是周围围点的数量。默认值 为N= 100。 矩阵Ø 定义了准线（圈）椭圆圆柱 表面。其内容以0和1之间的值，并适用于 小学和中学的准线轴。值的defeault Ø =的（长（x），2）。 矩阵X，Y，Z轴确定圆柱面，冲浪（的X，Y，Z）的显示器 圆柱面。( [X,Y,Z]=cylinder2(x,y,z,r,N,o) Vectors x, y, z define the central line of cylindrical surface and vector r defines the radius of cylindrical surface, and has the same length as x, y, z. N is the number of points around the circumference. The default value is N = 100. Matrix o defines ovality of the directrix (circle) of cylindrical surface. Its elements take values between 0 and 1 and apply to the primary and secondary axis of directrix. The defeault values are o=ones(length(x),2). Matrices X, Y, Z define the cylindrical surface, surf(X,Y,Z) displays the cylindrical surface. )