inc_pid

整数规划的一个求解方法（得到CUMCM一等奖）主要思想：找最大元之后的逐步互换求解，有点类似遗传算法(an Integer Programming Solution (with Into First Class) main ideas : after finding the greatest element gradually swap solution, it is somewhat similar genetic algorithms)

利用乘幂法求解矩阵A=[6，-11,6 1,0,0 0,1,0]的特征根（1,2,3）(solve the characteristic roots of array: A = [6,-11,6 1,0,0 0,1,0] by using matrix power method the root=(1,2,3))

matlab编程通过MUSIC算法定位声源方向（DOA），图形最高点对应横坐标即为声源方向(MUSIC algorithm matlab programming by positioning the sound source direction (DOA), the horizontal axis corresponds to the highest point of the graphic is the sound source direction)

MATLAB给图像添加高斯、椒盐、加性及乘性噪声[噪声生成]源代码Gaussian-Pepper-Noise-Generator(MATLAB——Gaussian-Pepper-Noise-Generator)

这里面有两个程序，两个都是采用4QAM调制。不过个人觉得第一个更容易懂，因为写的很有条理。我改的那个程序就是根据这个来的。 不过在这里面有个问题就是信道系数只能是由高到低，大家可以试试，改成[0.227 0.46 0.688 0.46 0.227]这个是老师给我的仿真中常用的信道系数，这个成为归一化信道，就是系数平方和为1. 第二个程序没有涉及到信道系数，但是这个程序当中，在128个子载波中，前后有32个空载波，这个在OFDM中也是经常用的，这样可以降低误码率。 (And there are two programs, two are based on 4QAM modulation. But personally feel that the first is easier, because the writing is organized. I changed that procedure is based on the past. However, there is a problem in that there is only channel coefficients from high to low, we can try and change into [0.227 0.46 0.688 0.46 0.227] This is the teacher gave me the simulation channel coefficient commonly used, this became normalized channel, is coefficient of the square and is 1. The second program is not related to channel coefficients, but this program which, in the 128 sub-carriers, the before and after the 32 air carriers, the in OFDM is also often used, which can reduce the error rate.)

说明：  模拟调制识别，可以实现多种模拟调制的识别。。。。(it is about the identification of the methods of modulation...)

是一些常用的时域特征提取方法，再次进行整合，方便大家的提取(Are some commonly used time domain feature extraction method, integrate again, facilitate everybody extraction )

truss solver with bridge

tutorial matlab codes for university students(if while switch)

说明：  灰色关联度矩阵模型MATLAB源代码，亲测可用。(Gray correlation matrix model MATLAB source code, pro-test available.)