exm0925_1

plane wave expansion for 2D and 3D photonic crystal band gap calculations

引入ECG信号bat等文件，是不可少得的M文件(The introduction of ECG signal bat and other documents is indispensable document obtained M)

本代码是利用软投票法对图像进行分类，通过该方法，可以很好地对图像进行分类(This code is the use of soft voting method for image classification, by this method, can be a good image classification)

萤火虫算法实现求解最优问题，测试函数表明取得较好效果(Solving the Optimal Problem by Firefly Algorithms)

二维卷积过滤器 卷积是一种像素过滤器 用像素本身以及邻近像素的加权平均值来替换这个像素(Two-dimensional convolution filter Filters of the convolution is a weighted average of the pixel and the neighboring pixels in the pixel itself, the pixel is replaced)

找了很久的matlab解方程程序，相当丰富，对学数学的同学很有帮助(To find a long process of solving equations matlab, very rich, very helpful for students of mathematics)

说明：  本程序给出了qpsk调制的源码程序，具有一定的参考价值( this program shows the qpsk modulation,from this program we can understand the process of qpsk modulation more .)

本程序是关于无线信道建模的模型，适用于数学建模的程序。(This program is about the model of wireless channel modeling, suitable for mathematical modeling procedure.)

GA location allocation problem sample

说明：  灰色理论认为系统的行为现象尽管是朦胧的，数据是复杂的，但它毕竟是有序的，是有整体功能的。灰数的生成，就是从杂乱中寻找出规律。同时，灰色理论建立的是生成数据模型，不是原始数据模型，因此，灰色预测的数据是通过生成数据的gm(1,1)模型所得到的预测值的逆处理结果。 此程序用来作灰色预测。 (Gray theory that the behavior of the system even though the phenomenon is dim, the data are complex, but it is after all, is orderly, there is a whole function. Gray number generation, that is, from the clutter to find out the laws. At the same time, the gray theory is to generate data model, rather than the original data model, therefore, gray forecast data to generate data through the gm (1,1) model by the inverse of the predictive value of the results. This procedure is used for gray prediction.)