ovtoolbox

fast CSDP algorithm입 니 다 .

一个刚编出来的K—means 聚类算法的matlab源代码 适合多维数据(Just made out of a K-means clustering algorithm matlab source code for multi-dimensional data)

matlab的纹理计算程序，能够计算熵、对比度、均值、方差(texture calculation procedure using matlab)

A polyalphabetic cipher is any cipher based on substitution, using multiple substitution alphabets. The Vigenère cipher is probably the best-known example of a polyalphabetic cipher, though it is a simplified special case.Polyalphabetic substitution ciphers are useful because the are less easily broken by frequency analysis, however if an attacker knows for instance that the message has a period n, then he simply can individually frequency analyze each cipher alphabet. The number of letters encrypted before a polyalphabetic substitution cipher returns to its first cipher alphabet is called its period. The larger the period, the stronger the cipher. Of course, this method of encryption is certainly not secure by any definition and should not be applied to any real-life scenarios.

Caracteristic panal PV

document technique ansaldo

实现Po计算电磁散射单站计算，对于一般的目标可进行简单的计算。(it can be used to calculate the monostatic RCS of the object in matlab)

说明：  时间混叠信号matlab程序,是利用时间混叠信号进行循环谱估计的前提。该程序用于证明时间混叠后信号为周期信号。(Time Aliasing)

读ncdc风场数据，包括速度场和风应力旋度场(read wind data)

求复杂图形的等值线平面图，能够均匀地画出三维图形的等值线图(Find the contour plan of complex graphics, can be evenly draw the contour map of three-dimensional graphics)