filter

QPSK调制与解调，并有误码率的分析，加了 信道噪声。(QPSK modulation and demodulation, and bit error rate analysis, the addition of channel noise.)

Fourth order runge kutta method The double chromosphere program

针对相干信号的DOA估计，对常规Music，空间平滑Music，双向空间平滑Music，传统LSESPRIT，TEOPLITZ-ESPRIT算法进行仿真并比较(DOA Estimation of the most classic super-resolution algorithm MUSIC and ESPRIT algorithm simulation of irrelevant signals estimates for the coherent signals DOA, conventional Music, spatial smoothing Music, bidirectional spatial smoothing Music, traditional LSESPRIT, TEOPLITZ-ESPRIT algorithm simulation and compare)

这是关于MUSIC算法的文档。希望对初学空间谱估计的人有帮助！(This is the document of MUSIC algorithm. I hope it can help beginners of spatial spectrum estimation. )

蜂窝小区资源分配，根据小区间干扰对部分小区进行限制，分配功率和频率资源，实现吞吐量最大化。(Cell resource allocation, according to the inter-cell interference on the part of the cell to limit distribution of power and frequency resources to maximize throughput.)

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)

function of ant colony search algorithm in easy method

les contours actif parametrique (snakes)

这是一种模拟退火的MATLAB的代码有用请下载(if it help,please go ahead)

关于K均值算法的常用程序，是采用MATLAB工具编写的，(K-means algorithm commonly used program)