distributed

光通信中抑制载波型差分相位调制信号建模与仿真分析(Optical Communication inhibit carrier-based differential phase modulation signal modeling and simulation analysis)

基于harris算法的MATLAB角点检测程序 (Harris algorithm based on corner detection program MATLAB)

通过matlab创建excel，并通过matlab的命令窗口实现在excel中画图。(Created by matlab in excel, and drawing by the Matlab command window in excel.)

基于奇异值分解的一维噪声处理，分别用了三种阈值做了对比，希望对您有所帮助！(Based on singular value decomposition of the one-dimensional noise process, three thresholds were used to do a comparison, I hope for your help!)

对数据进行reof处理，得到数据的空间模态和时间系数(Matlab function of reof)

利用pcnn，每当有一批像素对应的神经元点火，对像素值进行一次修正。第n次点火的所有神经元用矩阵B（n）表示， 已经点火的像素位置标记为‘1’，未点火的标记为‘0’。通过一个3*3的模板滑过B（n），判断若模板内的值全为‘1’或全为‘0’， 则这些像素值不进行处理，否则若模板中心的值为‘1’，则增加该位置的像素值的大小，中心值为‘0’，则减小像素值。该功能由xiugai(B,K)函数实现 Beta取负值来抑制周围的神经元点火，因为输入pcnn（X）的是模糊图像，抑制之后使处理的像素值更加接近原图像的像素值（抑制参数通过试验确定，并不精确） 总之运行结果只是对像素值变化较大的边缘区域进行了像素值的修正。 通过不断调整参数使峰值信噪比有所升高，但是升高得不是太多(Use pcnn, whenever a group of pixels corresponding to the firing of neurons, a correction value for the pixel. Ignition of all the n-th neuron matrix B (n) represents, Already ignition pixel position labeled 1 , unfired labeled 0 . By a 3* 3 templates over the B (n), determines if the value within the template are all 1 or all 0 , These pixel values are not processed, otherwise the value if the template center 1 , then the increase in the size of the pixel values of the position, the center value of 0 , the pixel value is reduced. This function is implemented by xiugai (B, K) function Beta is a negative value around the element to inhibit neuronal firing, because the input pcnn (X) is a blurred image, the pixel values of inhibition after treatment of the pixel value closer to an original image (suppression parameter determined by experiment, is not exact) Results only in short run large changes in the edge region of the pixel values of the corrected pixel values. )

ce travail aborde l authentification et édentification en biometrie avec l enpreinte digital

说明：  数学建模大赛常用的建模模型，对全国建模大赛很有帮助的啊！(Modeling Mathematical Modeling Contest common model of the national modeling contest helpful ah!)

语谱图的实现过程，对于初学者有很大的帮助(Spectrogram of the realization of the process, very helpful for beginners )

The code in matlab help user do statistical analysis of time series