filterdesign1

一维边值为0的微分方程，有限元方法逼近问题的解，给出误差的lebesgue模估计和能量估计。copy到命令窗口里运行即可。(solove one dimension ODE in FEM,and give error estimate)

field ii 仿真工具箱 用于超声成像 可以实现激励，聚焦，声场仿真等(field ii toolbox, can realize excitation, focus setup, sound field simulation, which can be used for ultrasound imaging)

Addison Wesley : Software Engineering and Computer Games

一维含缺陷光子晶体带隙图,光子晶体由正常材料和不定介质组成。(One-dimensional photonic crystals with defects chart, photonic crystal materials and volatile media by the normal form.)

sobel 边缘检测 是一种对边缘的检测 非常有效 有用的不方可以试试(sobel Edge detection ，it is a kind of edge detection.Very effectively useful not can try)

SimGear是飞行模拟项目FlightGear的引擎，是一套开源库。(SimGear is FlightGear flight simulator project engine, is a set of open source libraries.)

利用自然梯度算法，三相光伏逆变并网的仿真，Pisarenko谐波分解算法。( Use of natural gradient algorithm, Three-phase photovoltaic inverter and network simulation, Pisarenko harmonic decomposition algorithm.)

实现数字音频效果的源程序，包含多速率信号处理的内插和抽取源程序。(realize the audio effect.inlude the function of multirate signal processing knowledge)

MATLAB读取cad生成的dxf文件,在MATLAB可以处理简单的CAD的对象，为MATLAB读取cad提供了一种方法。(MATLAB can read the file of dxf. You can do opertion to the object in the cad.)

Hysteresis Current Control in Inverter