exam1

用于产生正弦波数据文件。在matlab环境下使用。希望对你有所帮助(Used to generate the sine wave data file. Matlab environment. I hope for your help)

设计一维纳滤波器。 （1）产生三组观测数据，首先根据s(n)=as(n-1)+w(n)产生信号s(n)，将其加噪(信噪比分别为20dB，10dB，6dB)，得到观测数据x1(n)，x2(n)，x3(n)。 （2）估计xi(n)，i=1,2,3的AR模型参数。假设信号长度为L，AR模型阶数为N，分析实验结果，并讨论改变L，N对实验结果的影响。 (Design a Wiener filter. (1) generate three sets of observations data, first according to s (n) = as (n-1)+w (n) to generate a signal s (n), which add noise (SNR respectively 20dB, 10dB, 6dB), obtained observation data x1 (n), x2 (n), x3 (n). (2) estimate xi (n), i = AR model parameters 1,2,3. Assuming the signal length L, AR model of order N, analysis of experimental results and discuss changes affect L, N of the experimental results.)

MATLAB CODE FOR POWER FLOW 1

this code helps to find roota of equation by gauss seidel method

levelset的matlab工具箱。内涵说明文档，有实例程序(levelset the Matlab toolbox. Connotations of documentation, sample program)

用matlab实现了指纹的预处理以及特征点的提取。(Using matlab fingerprint preprocessing and feature point extraction.)

genetic algorithm on optimization Parameters program

说明：  关于层次分析的MATLAB源程序，对数学建模求解层次分析问题特别有用。(MATLAB-level analysis on the source of mathematical modeling to solve the issue of the level of analysis particularly useful.)

说明：  ＭＡＴＬＡＢ实现０.６１８法近似计算函数的最小值(MATLAB .618 law approximate calculation of the minimum function)

真空中二维FDTD程序，利用了二阶边界条件，具有比较好的学习参考价值(2D FDTD program )