RADAR

SAR原始数据，对初学者很有用啊！特别是用matlab读取的很方便(SAR raw data, useful for beginners! Especially matlab read very convenient)

司守奎增补版数学建模教材 一本好书，值得推荐(Si Shoukui added to the edition of mathematical modeling teaching a good book, worthy of recommendation)

我们的目的是将一个分数拆分成若干个分子是1分母是正整数的分数之和的形式。例如2/3可以拆分成1/2+1/6的形式。这里不考虑顺序，比如1/6+1/2和1/2+1/6相同。 输入p, q, a, n, 其中p/q为分数，对这个分数进行拆分，要求拆分的分数个数不能多于n个，所有分母的乘积不能大于a。求有多少种拆分方法? 输入：最多200组数据。在每行中都有四个数分别表示p, q, a, n，之间以空格隔开，并且满足p,q<=800，a<=12000，n<=7，最后以四个0做为输入的结束。 输入示例: 2 3 120 3 2 3 300 3 0 0 0 0 输出示例: 4 7 (Our aim is to split a fraction into a number of elements is a denominator is a positive integer fraction of the sum of form. For example, 2/3 can be split into 1/2+1/6 form. Not considered here, the order, such as 1/6+1/2 and 1/2+1/6 of the same. Input p, q, a, n, where p/q as a fraction of this split scores require no more than the number of split points n-all the product of the denominator can not be larger than a. How many kinds of demand split method? Input: Up to 200 sets of data. In each line has four numbers indicate the p, q, a, n, separated by a space between, and meet the p, q < = 800, a < = 12000, n < = 7, the end, four 0 as the input end. Input Example: 2,312,032,330,030,000 sample output: 47)

PNN and K-mean algorithm

说明：  LMI 实例H∞ state feedback control for generalized continuous/discrete time-delay system☆(LMI CONTROL TOOLBOX)

计算Born-Jordon时间频率分布，需要输入的参数包括信号、时间、时间和频率的平滑窗口等参数(Born-Jordon calculating time-frequency distribution of the input signals ,including signals, time, time and frequency parameters of the smoothing window and so on .)

文章是关于在Matlab中的线性系统的逆的求解。(The article is to solve the inverse of the linear system in Matlab.)

数字锁相环，这里有个例子，可以借鉴看看，用simulink搭建的(dpll)

描述对数距离/正态阴影衰落路径损耗模型的MATLAB程序(A description of the number of distance/normal shadow fading MATLAB program path loss model)

通过修改输入excel文件中的铺层信息及材料属性，计算层合板的等效模量及极限强度，并绘制应力沿厚度方向的分布图(The equivalent modulus and ultimate strength of the laminates are calculated by modifying the information and material properties of the laminates inputted into excel files, and the stress distribution along the thickness direction is plotted.)