渐变折射率2

说明：  地震勘探 AVO正演 雷克子波 运用雷克子波和反射系数进行褶积得到合成地震记录(matlab ricker The seismic record obtained by convolution of rec wavelet and reflection coefficient is one-dimensional, and the AVO response can be identified by the seismic record)

组合导航定位中GPS与北斗组合单点定位算法，包含最小二乘与方差分量估计(The combination algorithm of GPS and Beidou in single point location)

端面抽运Yb石英光纤激光器理论计算，matlab程序(end pumping of Yb doped fiber lasers)

说明：  异步电机的矢量控制和直接转矩控制，在SIMULINK平台上搭建的模型(Vector control and direct torque control of asynchronous motor)

用于读取欧空局Cryosat-2卫星搭载的SARAL高度计获取的SARin L1b数据.(It is used to read SARin L1b data obtained from the SARAL altimeter carried by the ESA Cryosat-2 satellite.)

极值理论POT模型阈值选取，matlab代码。(POT model; extreme value theory)

ABAQUS材料本构的二次开发讲解，详细说明。(Introduction to the secondary development of ABAQUS material constitutions.)

说明：  Fourier Ptychography是一种首先开发用于显微镜的成像技术。该技术首先收集感兴趣的显微样品的一系列图像。从相干光源（通常从LED阵列）以不同的照明角度获取每个图像。然后，使用迭代相位检索算法将获取的图像集组合为最终的高分辨率图像，该图像可以包含多达十亿个像素（千兆像素）。该技术还提供了非干涉相位图像和近波长衍射极限分辨率。(Fourier Ptychography is an imaging technique first developed for use in microscopes. The technique first collects a series of images of a microscopic sample of interest. Each image is acquired under a different angle of illumination from a coherent light source (typically from an array of LEDs). The acquired image set is then combined using an iterative phase retrieval algorithm into a final high-resolution image that can contain up to a billion pixels (a gigapixel). The technique also provides a non-interferometric phase image and near wavelength diffraction-limited resolution.)

说明：  abaqus建立三维椭球模型，主要用于有限元细观力学分析，建立几何模型(Abaqus establishes 3d ellipsoid model, which is mainly used for finite element mesomechanical analysis and geometric model establishment)

一卡通离线积分系统(Card offline scoring system)