Inverse-short-time-fourier-

In this document has been introduced comprehensively how to solve different partial differential equations .Everbody can solve Heat Conduction Equation, Helmholtz Equation, Laplace Equation and Wave Equation for different initial and boundary conditions. This document is elemantary of to understand how to solve partial differential equations with the aid of a porgramming language.

说明：  利用模拟信号对能量法进行验证，主要求解振幅值，能量值，频率包络值(Analog signal on the energy method used to verify, mainly to solve the amplitude value, energy value, the value of the frequency envelope)

removal of noise by using robust techniques

It is very much essencial in electronics enginerring student for design radar system

电力电子技术中三相变流器的模型，可用于微电网中质量的控制(Three-phase power electronic converter technology models that can be used in quality control microgrid)

newmark求解线性结构动力反应，非线性不行，可用于有限元(Newmark solving dynamic responses of linear structures)

a lot of examples of signal processing in Matlab

分别对正弦波，三角波，方波，一周期内取为整数的64个点（A=4095）；写锯齿波和方波的谐波构成（只写了3、4个）。(Of sine wave, triangle wave, square wave, A week off for integer in the period of 64 points (A = 4095) Write a sawtooth wave and square wave of harmonic (only wrote 3, 4).)

是生物医学工程专业脑功能后处理软件，用于脑出血，脑梗死血流变化的相关研究领域。(Biomedical engineering is the brain function processing software for cerebral hemorrhage, cerebral blood flow changes in the relevant field of study.)

matlab处理指纹图像，由于指纹的唯一性、可靠性和稳定性，指纹已成为身份识别和鉴定的一个重 要标志，并被公认为“物证之首”。指纹识别作为一种生物识别技术，历来受到人们的广泛关注和重视，是未来个人身份认证的重要组成部分。(Fingerprint image processing matlab，Because the uniqueness of fingerprints, reliability and stability,fingerprint identification has become an important symbol of appraisal,and is recognized as the "first" material.The fingerprint identified as a kind of biometrics,has received extensive attention of,the individual identity authentication is the important component.Based on the MATLAB software applications for tools,for fingerprint image preprocessing and feature extraction technology research.Including pretreatment part involves by different methods of fingerprint image segmentation to extract valid area,with the improvement of OPTA thinning algorithm for thinning, )