matlabshiyanbaogao

Antennas Design in matlab.

说明：  本程序 是基于对货流量的预测 程序完整 采用GRNN广义神经网络(This procedure is based on a complete freight traffic forecasting process using generalized neural network GRNN)

GMDH_main为GMDH主函数； variable_Combin为输入层初始变量选为x1,x1^2,x1*x2,x2^2,x2时的输入变量矩阵值 variable_select计算X_train训练输入数据,Y_train训练输出数据,X_test测试输入数据,Y_test测试输出数据 Combin为求变量的两两组合 Sym_Combin为求符号变量的两两组合 PE_AIC求每层各神经元的参数估计W，及训练数据在参数估计后估计的输出out_train，测试数据在参数估计后的估计输出out_test，还有与实际比较的误差平方和PESS， 以及准则值AIC sym_representation求最终的输入输出符号表达式 Criterion_value求准则值 (GMDH_main main function for the GMDH variable_Combin initial variables chosen for the input layer, x1, x1 ^ 2, x1* x2, x2 ^ 2, x2 the value of the input variable matrix calculation X_train variable_select training input data, Y_train training output data, X_test test input data, Y_test for the sake of the test output data Combin pairwise combination of variables for the sake of symbolic variables Sym_Combin pairwise combinations PE_AIC neurons find each parameter estimation of the W, and after the training data is estimated in the estimation of output out_train, test data After the parameter estimates of the output estimated out_test, also compared with the actual sum of squared errors PESS, as well as the final criterion value AIC sym_representation seek the input and output values ​ ​ of symbolic expressions Criterion_value find criteria)

啁啾脉冲对传输特性的影响，用MATLAB实现可视化(chirp pulse)

根据文本中的三维数据点，绘制出三维网格地图。(According to the text of the three-dimensional data points, draw a three-dimensional grid map.)

通过交替最小二乘法解决协同过滤典型问题，包含针对训练集的超参数和特征个数的选择(Alternated Linear Square)

地球物理学，地震波有限差分二维正演模拟，没加边界条件(Geophysics, two-dimensional finite difference forward modeling of seismic wave, did not increase the boundary conditions)

作者提出了一种对宽带信号波达方向的估计的算法CYCLIC—SSF，进行了原理分析，仿真建模，性能分析(Authors propose a wideband signal DOA estimation algorithm CYCLIC-SSF, were the principle analysis, simulation modeling, performance analysis)

现代通信系统(matlab版本)第二版，第一章的第四个例题程序.(Modern communication systems (matlab version) second edition, the first chapter of the fourth Example program.)

根据滚动轴承的内圈，外圈，滚动体，正常四方面做故障诊断预处理(According to the fault of rolling bearing inner ring, outer ring, rolling body, the normal four fault diagnosis pretreatment)