noise

利用MATLAB编写的函数逼近模型适合初学者使用(MATLAB function approximation model, suitable for beginners to use.)

浊音倒谱图的matlab实现，包括语音信号的分帧、加窗，取一帧进行分析。(Dullness inverted spectrum realize the matlab，ncluding sub-frame of the speech signal, windowing, take a frame for analysis)

用于高度计数据的绘图和网格化处理，利用matlab本身meshgrid函数(For altimeter data mapping and gridding processing)

FIR filter design main function

通过修改输入excel文件中的铺层信息及材料属性，计算层合板的等效模量及极限强度，并绘制应力沿厚度方向的分布图(The equivalent modulus and ultimate strength of the laminates are calculated by modifying the information and material properties of the laminates inputted into excel files, and the stress distribution along the thickness direction is plotted.)

说明：  关于混沌振子检测弱信号的系统相位变化图，对初学混沌的人很有用。(On the chaotic oscillator detection of weak signal system phase diagram, for beginners of chaos is very useful.)

本函数用于实现用矩量法和海伦积分方程球解对称天线电流分布，计算电磁学。(Method of moment for antenna.)

说明：  ecg preprocessing baseline removal, powerline interferance removing

Particle Swarm Optimization

说明：  本程序实现了采用聚类法对图像进行分割，给出了图像分割前后的直方图，程序内有详细的程序说明和例图像(This program was realized using clustering method for image segmentation is presented, and the histogram image segmentation, procedure in detail program)