vcfangzhen

Simulation DS-SS Rake Receiver

自己写的一个psolssvm程序 要有lssvm工具箱才可以运行(Write a psolssvm procedures to have lssvm the toolbox before you can run)

matlab编的有关响应面的程序，运算有结果(Program of response surface compiled by MATLAB)

一位意大利博士编写的关于online SVR的工具箱，对我启发很大。附加了Powell法优化工具(a matlab toolbox about online SVR and Powell)

five level diode clamp PWM.this is th e matlab simulink readyly usable file for PWM techinique

针对光伏电站独立防孤岛保护装置现有的被动式孤岛检测方法,结合电网实际需求，(The ability to detect islanding condition is a mandatory requirement for inverter-based distributed generation system. In this study, an improved islanding detection scheme is developed using the variational mode decomposition (VMD) algorithm)

说明：  本文提出了一种基于混沌加密的DCT域二值图像数字水印算法.该算法首先利用混沌序列将含有版权信息的有意义二值图像水印进行加密,然后利用人眼视觉系统(HVS)的特性将原始载体图像进行块分类,最后将不同强度的水印分量嵌入到不同类的图像块DCT中频系数中去.利用混沌序列对水印进行加密,使水印本身具有安全性,对数字作品进行双重保障.通过高斯噪声,椒盐噪声以及JPEG压缩和剪切等攻击试验,表明了该算法具有较好的鲁棒性.(Encryption in DCT domain is proposed. Firstly, the meaningful binary image watermark containing copyright information is encrypted by using chaotic sequence, and then the original image is classified by using the characteristics of human visual system (HVS), Finally, the watermark components with different intensities are embedded into the DCT intermediate frequency coefficients of different types of image blocks. Chaotic sequences are used to encrypt the watermark, so that the watermark itself has security and double protection for digital works. Experiments on Gaussian noise, salt and pepper noise, JPEG compression and clipping show that the algorithm has good robustness)

e-book for engineering

说明：  给出了一个有关Chaikin细分法的matlab编程，该程序适合于任意的封闭的初始控制多边形(a program about Chaikin subdivision scheme which can be applied to closed polygon)

matlab 数学应用，讲解如何用matlab求数学极限，倒数，积分，微分等数学运算(Matlab mathematical application)