PN_synchronization_simlulink

小波三种阈值去噪的方法，硬阈值，软阈值，半软阈值去噪(Three kinds of wavelet thresholding methods, hard threshold, soft threshold, semi-soft thresholding)

计算循环平稳3阶统计量的程序，自己编的，希望有用(Calculation 3-order statistics of cyclostationary process, their own series, and hope that useful)

this file is the code of fuzzy numbers

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)

动量bp算法源程序。网上找来的。希望有用。多谢支持(momentum bp algorithm source. The design of the Internet. Hope useful. Thank you for your support)

To investigate the effects of the discrete Fourier transform parameters on the frequency spectra of discrete-time signals. (Display x(n) on the screen with the plot command in Matlab)

一个matlab time dot main cross-correlation， 解压后在matlab里运行即可，可计算各种数字信号的延迟，没有密码(a Matlab time dot main cross-correlation , unpacked were operating in Matlab can, translate various digital signal delays, no password)

逆合成孔径雷达图像生成程序。可以用作雷达成像新手学习之用( Inverse synthetic aperture radar image generation program. It can be used as radar imaging novices learning purposes)

小波变换bp omp等方法的二维比较程序(Two dimensional comparison of wavelet transform, BP, OMP and other methods)

说明：  09年数学建模眼科 论文代码 包括随机模拟和分布拟合(2009 Eye of mathematical modeling papers, including stochastic simulation and code distribution fitting)