anaask

玻璃切割项目最低水平线算法MATLAB源码，已通过调试(Glass cutting project MATLAB source code, has passed the commissioning)

Convolution Encoder and Decoder 1/2 , Viterbi algorithm

利用Matlab图像处理工具箱中的函数实现图像对比度增强的功能(Image contrast enhancement using Matlab Image Processing Toolbox function)

将断层剖面划分为一组网格，并以固定的事件数或固定的扫描半径，计算每个网格点处的b值。然后用色彩表示断层面上b值的分布情况，从而反应断层的应力积累情况，便于地震学家分析该断层是否存在发震的可能(This subroutine creates a grid with spacing dx,dy (in degreees). The size will be selected interactively or grids the entire cross section. The b-value in each volume is computed around a grid point containing ni earthquakes or in between a certain radius. The standard deviation is calcualted either with the max. likelihood or by bootstrapping, when that box is checked. If not, both options can be assigned by the additional run assignment. Standard deviation of b-value in non-bootstrapping case is calculated from Aki-formula!)

single Point positioning

EEMD在EMD的基础上进行添加高斯白噪声，VMD相对于EEMD时频分解效果更好，有效的抑制了模态混叠和端点效应(EEMD adds Gaussian white noise on the basis of EMD, and VMD has better effect on time-frequency decomposition than EEMD, effectively suppressing modal aliasing and endpoint effects)

nelder_mead优化算法，求多维函数极值的一种算法，不利用任何求导。利用多面体逼近。(nelder_mead optimization algorithm, and a multi-dimensional function extremum algorithm, do not use any derivation. The use of polyhedral approximation.)

说明：  这篇文章是关于标准空间二次曲面拟合的研究,对于齿轮研究者有很好的参考价值,希望大家喜欢(This article is about the standard space quadric fitting studies, researchers for the gear have a good reference value, I hope you like)

imnoise2 预加噪声 matlab code(imnoise2 pre-plus noise)

ATGP endmember extraction algorithm from Washington DC hyperspectral data!