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单纯型搜索MATLAB程序，用于搜索多变量函数的局部极小值。(Search MATLAB simple procedure used to search for multi-variable function of the local minimum value.)

snake 模型的MATLAB算法。可用于图形轮廓识别等图像处理方面的领域。(active contour model developed by others.It can be used in line detection and motion tracking.If someone wants to use it,please get in tough with the developer.)

通信过程中16QAM调制解调过程及其误码计算(Communication during the process of 16QAM modulation and demodulation and error calculation)

probability based programs

说明：  这是图像加密的源代码。可以下载分享，解密源代码，下次上传(This is the image encryption source code. Download share, decryption source code, the next upload)

加入高斯白噪声的信道模拟,在学习的过程中，做这样的仿真是很有必要的(The simultor of AWGN)

使用矩形窗函数，分析信号截短对离散傅立叶变换的影响，其中原始信号为正弦函数(Use a rectangular window function, the analysis of the signal truncated discrete Fourier transform, which the original signal is a sine function)

this file can be interpreted as a substantial work

说明：  本目录主要包括：文档和两个源代码。 其中一个源代码是识别程序的，另一个是一个矩阵类库的，书里面也使用过，所以一并附上。 因为已经保存了训练好的网络权值，所以第一次使用识别程序时，可以直接运行\\Release目录下的可执行文件，然后对图片目录中的测试图片进行读入、识别。 当然读者也可以自行用训练样本训练网络，不过要特别注意训练样本的选择，否则可能造成识别率很低。训练样本选择的原则是，尽可能的有代表性，在训练时间不至于太长的情况下，训练样本数目尽量多。 ( This directory includes: documentation and two source code. One of the source code is to identify the procedure, the other is a matrix class library, the book which is also used, so be attached. Because it has saved the trained network weights, so the first use of identification procedures, you can directly run \ \ Release directory of the executable files, and then tested on the images directory to read pictures, identification. Of course, readers are free to use the training samples to train the network, but pay special attention to training samples, otherwise it may cause very low recognition rate. Training sample selection principle is that as far as possible, representative, in the long training time Buzhi Yu s case, the number of training samples as much as possible. )

利用模式理论，对给定几何尺寸以及折射率分布的光纤进行模式求解与绘图，该程序给出LP21模的求解与绘图。(the LP21 mode of the fiber)