robust

embed and extract watermark

S4VM 对传统的S3VM 进行了改进。传统的S3VM 基于低密度假设，它试图找到一个低密度的分界线， 也就是更倾向于决策边界穿过特征空间的低密度区域。S4VM 和S3VM 的不同点在于，S3VM 试图把注意力 集中在一个最优的低密度分界线上，而S4VM 则同时关注多个可能的低密度分界线。之所以这样做，是因为 给定一些有标记的点和大量未标记的点，可能存在着不止一个“间隔”较大的低密度分界线（如图2 ），基于 有限的标记样本，很难决定哪个是最好的。虽然这些低密度分界线都与有限的标记样本吻合，但它们之间差 异很大，因此如果选择错了，会有一个很大的损失，导致性能下降。所以S4VM 试图考虑所有可能的低密度 分界线。 (Over the past decade, many improved versions are proposed to solve every different specific problem of semi-supervised support vector machines, for example: to the inefficiency issue, meanS3VM is introduced to performance degenerate problem, S4VM is proposed)

Just have a look at it for OFDM....nice code

有关于数字信号处理的水印技术，成功运行，除水印效果很明显(Digital signal processing on the watermarking technology, successful operation, in addition to obvious watermark)

get hard disk physical number.rar

说明：  plotHHT为一个绘制信号希尔伯特谱的程序，主要为希尔伯特黄变换。(PlotHHT is a program for plotting Hilbert spectrum of signals, which is mainly Hilbert Huang transform.)

说明：  实现单自由度受迫振动，图像绘制,我们可以绘制出单自由的图像出来，供我们参考(we can use this specification for program to draw the picture,this program is writed by matlab and it is easy to understand.)

one paper about the wind turbines in psat too matlab

利用matlab对图片频域变换、加噪声、计算SNR PSNR，对音频进行处理包括提取高音、低音、并对其进行调制解调(Using matlab frequency domain transform of the picture, add noise to calculate the SNR PSNR of audio processing including the extraction of treble, bass, and its modulation and demodulation)

cvx工具箱，适用于windows 64位，官网还可下载其他版本，具体参考文件夹doc中pdf(cvx toolkit for windows 64 bit official website can also download other versions, with specific reference to the folder in pdf doc)