AR

本文算法是将24 位真彩图的亮度分量分块 DCT ,然后利用DCT 量化系数的奇偶特性嵌入8 位灰度水印图,并通过PN 序列加密来保证水印的 安全性。算法中,将灰度图像转换为二进制数据 流,置乱后扩频调制,隐藏在宿主DCT 系数量化值 中,提取时不需要宿主信号,实现水印信号的盲提 取。(This algorithm is 24-bit true color pictures of the luminance component of block DCT, quantization DCT coefficients and then use the parity properties of 8-bit grayscale watermark embedding map, and through the PN sequence of encryption to ensure the security of the watermark. Algorithm, the gray image into binary data stream, scrambling after the spread spectrum modulation, hidden in the host DCT coefficient quantization values, the extraction does not require the host signal, the blind watermark extraction.)

信号提取是信号处理的一个重要技术，如何评价提取信号的性能，相关系数就是一个很好的评价指标！(signal from the signal processing is an important technology, how to assess the performance of signal extraction, the correlation coefficient is a good evaluation index!)

很好的matlab/simulink电子书(ebooks on matlab/simulink)

this is a gui code.you can use it to create a matlab gui.

一维褶积 雷克子波与地层序数 地震资料正演方法(One-dimensional convolution Ricker wave formation ordinal)

qam implementaiton is uploaded here for u

用于matlab编程的入门文档，内含大量程序源码。(Getting Started document for matlab programming, containing a large program source code.)

实现微分方程向前查分 （教材为微分方程数值解，习题5.2.4）(forward difference)

基于matlab的声音信号采集，分析处理，包括声卡采集，及浏览系统文件(Based on matlab voice signal acquisition, analysis and processing, including card acquisition, and browse system files)

利用田纳西伊斯曼过程数据 分析得到误差的特征统计量( 允许输入拉丁字符的拼音 中文(简体) 英语 日语 Tennessee Eastman process of data analysis to get the characteristics of the error statistics 允许输入拉丁字符的拼音 中文(简体) 英语 日语 Tennessee Eastman process of data analysis to get the characteristics of the error statistics)