low-noise

Solution of Laplace equation in an semi-circle region by FEM method

说明：  四阶龙格库塔法，在解常微分方程时进行数值求解时调用使用(The fourth-order Runge-Kutta method is used to solve ordinary differential equations numerically.)

说明：  T型三电平控制PMSM仿真，用于永磁同步电机控制，逆变器 三相逆变器 适合 在matlab环境下运行(PMSM simulation of T-type three-level control for permanent magnet synchronous motor control. Inverter three-phase inverters are suitable for operation in MATLAB environment.)

matlab程序，关于一个kalman滤波的。(matlab proagram,which is about Kalman fliter)

sift特征点匹配程序，实现特征点匹配，.m文件，直接在matlab中运行即可。(sift feature point matching process, to achieve feature point matching,. m files can be run directly in matlab.)

用MATLAB编写的语音信号的短时分析，主要包括：分帧、短时能量、短时平均幅度、短时过零率、 VRhZwz函数、短时幅度差、倒谱、复倒谱 pTdcfmj系数计等，是我多年调试通过的程序 (MATLAB prepared with short-term analysis of the speech signal, including: framing, short-time energy, short-term average amplitude, short-term zero rate,VRhZwz function, short-term amplitude difference, cepstrum, cepstral pTdcfmj coefficient meter, etc. , is a program debugging through my years of )

一段用于光谱分析波段选择的连续投影算法matlab代码(A section for spectral analysis band selection continuous projection algorithm matlab code)

用Matlab实现Hash算法下大篇幅文本文件中字符出现的频率的统计！非常精炼！(Hash algorithm used Matlab to achieve great length text file in the frequency character of the statistics! Very refined!)

计算尺寸因子对消光效率和散射效率，吸收效率，后向散射效率等的影响 (Size factors calculating the efficiency of extinction and scattering efficiency, absorption efficiency, backscattering efficiency of)

三个简单地使用matlab实现的遗传算法的程序，为初学者提供一个入门知识(Three simple genetic algorithm matlab implementation of the program, to provide the knowledge of an entry for beginners)