cfhn

低通滤波器设计 绘制各种响应曲线 绘制输入信号曲线 绘制滤波后效果曲线(LPF DESIGN ALL CURVES INPUT SIGNAL OUTPUT SIGNAL)

说明：  通过BP神经网络学习一个3维的函数的源代码，为加快速度，程序初始化的为已经经过学习的得到结点权值，如果预设为随机值，将重新学习。(BP neural network through a three-dimensional study of the function of the source code to speed up, the initialization procedure for the study has already been node weights, if limited to random value, re-learn.)

说明：  EEMD：总体经验模态分解，一种改进的EMD方法。(Total empirical mode decomposition is an Improved EMD method.)

基于matlaB工具的一种简单的关于K_means聚类的算法(A simple clustering algorithm on K_means)

用于绘制电动汽车电动机的实际效率，MATLAB m文件(Used to draw the actual efficiency of electric vehicle motors, MATLAB m file)

基于拉格朗日多项式差值，已知一些给定的数值点（xi，yi）求未知的数xt对应的yt的值。(Lagrange polynomial based on the difference between the known value of some given point (xi, yi) find the value of an unknown number of xt corresponding yt.)

gauss-seidel算法实现对方程组的求解(gauss-seidel algorithm for the equations)

图像特征提取以及匹配，sift代码。可用于图片检索中，同比SURF，其算法可以较好的识别图像中文字(Image feature extraction and matching, sift the code. Can be used for image retrieval, up by SURF, the algorithm can better identify the image text)

matlab中的数字滤波器:butterworth滤波,besself滤波,chebyshev type1（2）滤波,椭圆滤波(Matlab the Digital Filter : butterworth filtering, besself filtering, chebyshev type1 (2) filtering, elliptic filter)

GSA,万有引力算法用于求解智能优化问题,效果特好!!(GSA, Gravitation intelligent optimization algorithm is used to solve problems, good special effects!!)