matlab_random_function

This is a m file which can be used for calculating the gravity of cuboids.

说明：   ()

matlab进行数字信号处理.经典最常用到的一些模块...对学数字信号的肯定有很大帮助...(matlab digital signal processing. The most commonly used in some of the classic ... of learning modules of the digital signal must be of great help ...)

说明：  自己编写的基于奇异值分解的MVDR方法进行信号频率估计的Matlab代码。 (Matlab code of the MVDR method of frequency estimation based on singular value decomposition.)

2DFDTDTM波模拟金属园柱体中电磁波，采用脉冲源激励。 (2DFDTDTM wave simulation metal cylinder Park electromagnetic wave and pulse source incentive.)

利用MMSE Quiescent Pattern Constraints去實現LCMV和LPMV能夠更有效預估JAMMER的方法。(The use of MMSE Quiescent Pattern Constraints to achieve LCMV and LPMV to more effectively forecast JAMMER method.)

alpha-β滤波器是针对匀速运动目标模型的一种常增益滤波器，本代码给出了在目标机动指标已知、未知和自适应滤波三种情况下的仿真代码(alpha-β filter is a moving target model for a uniform constant gain filter, the code is given in the target mobile targets known, unknown and adaptive filtering three cases of simulation code)

说明：  mRMR算法，用于特征选择，包含代码和例子(mRMRalgorithm for feature selection, code and example)

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)

image compression using JEPG2000