exa030903

Simple demo of sift from mr Lowe

用于地震工程学中的，修正反应谱的一种方法，尝试性修正反应谱(A method to modify the earthquake response spectrum)

I am working on patch antehnna and Finite Difference Time Domain (FDTD). I need FDTD code using MATLAB for antenna and electromagnetic.

此代码利用高斯牛顿迭代法，对非线性函数进行参数辨识。可以对传递函数通过阶跃响应实验得到的数据进行迭代获得传递函数的参数(The code uses the Gauss-Newton iteration method to identify the parameters of the non-linear function. The parameters of the transfer function can be obtained by iterating the data obtained from the step response experiment of the transfer function.)

主要介绍了MATLAB中常用的函数。按照函数名首字母排序，已注明其对应功能。(Mainly introduces the commonly used MATLAB function. In accordance with the function of the first alphabetical order, specifying the functionality of its counterparts.)

说明：  参考文件MAT-FILE打包下载visualC加加MATLAB(MAT-FILE)

基于MATLAB的28节点辐射状的前推回代法 基于MATLAB的28节点辐射状的前推回代法(Forward and backward substitution method based on MATLAB 28 node radial radial ago 28 node based on MATLAB and backward substitution method)

说明：  细分曲面catmullClark细分算法代码，直接运行的结果为一个实例的细分结果(subdivision surface)

输入节点个数和路径权重可得到任意两点之间的最短路径，放在Muti_Cost矩阵中(Input node number and weight of available paths the shortest path between any two points, on Muti_Cost matrix)

说明：  含有通常所需的自适应滤波的AR预测过程模型，能够顺利的运行！(this file has the adaptive filter matlab source code ,you can run it smoothly)