超声仿真模型field—II

this code written for solve a sample test function by pso based on mutation.

该程序为bellhop多径信道模型，其通信距离为5KM(The procedure for the bellhop multipath channel model, the communication distance of 5KM)

signal+noise is very simple like this

含风电场的电力系统潮流计算吴义纯caj IEEE14节点数据的说明(With the wind farm power flow calculation WU Yi pure. Caj)

计算天线阵列远场方向图，支持各种幅度加权，相位加权，可自行指定阵元方向图(calculate the farfield of an antenna array with various degrees of freedom)

现代信号处理中谱估计在matlab中的使用，最小均方误差等算法的MSE的计算,计算加权加速度,一种噪声辅助数据分析方法,用于建立主成分分析模型，感应双馈发电机系统的仿真。

这是图像恢复中的盲反卷积迭代算法的matlab的源程序，对于学习数字图像有很大的好处！(This is image restoration in the Iterative Blind Deconvolution algorithm matlab source for the study of digital image has a lot of benefits!)

matlab实现商标文字分割~第一部分计算列梯度差，计算每个像素的列方向一定范围内（n）最大值和最小值的差距,统计该差值超过某一设定域值T的像素的个数，并将该统计个数存在 GY 向量。，第二部分计算行梯度差，计算每个像素的行方向一定范围内（n）最大值和最小值的差距，统计该差值超过某一设定域值T的像素的个数，并存在 GX 向量(matlab text segmentation ~ realize trademarks calculations are shown in the first part of the gradient difference, calculated for each pixel column direction of a certain range (n) the difference between maximum and minimum values, statistics of the difference exceeds a certain threshold T set of pixels of a few, and the statistics of the number of vectors exist GY. , The second part of the calculation line gradient difference, calculated for each pixel within a certain range direction (n) the difference between maximum and minimum values, statistics of the difference exceeds a certain threshold T set the number of pixels, and the existence of GX Vector)

用传输矩阵的方法来计算光子晶体带隙，matlab文件(Transfer matrix method used to calculate the photonic crystal band gap, matlab file)

说明：  决策树 随机森林 解决分类和回归问题 并且可以进行特征提取 特征选择(Decision tree Random forest solves classification and regression problems and can perform feature extraction feature selection)