Mo-phong

关于音频数字水印的嵌入和提取的matlab程序(On the audio digital watermark embedding and extraction procedures of matlab)

说明：  Chau Yuen的酉空时码例程， 瑞利衰落信道下，采用4发1收，比较了不同信噪比下的BER和SER(Chau Yuen Unitary space-time code routines, Rayleigh fading channel, using 4-fat one collection, comparison of different signal to noise ratio of BER and SER)

分布式功率控制算法，对研究CDMA功率控制很有帮助~(Distributed Power Control)

THE MOST IMPORTANT FILE IN THE SYSTEM

MATLAB中文帮助.chm 如果你是MATLAB的初学者，你应该从阅读矩阵操作开始。最重要的是要学习如何输入矩阵，如何使用：（冒号）算子，以及如何调用函数。 在你掌握了基础之后，你应该阅读其他章节并运行实例。(MATLAB Chinese help. Chm If you are a MATLAB beginner, you should read the matrix from the start operation. The most important thing is to learn how to enter the matrix, how to use: (colon) operator, and how to call the function. You mastered the basic, you should read the other sections and run the examples.)

有关调制解调的全面程序包，里面的文件夹名字有点乱，但很全面，不要错过哦(For the full modem package, inside the folder name a little messy, but it is full, do not miss it)

说明：  自己做的一个Matlab小时钟，可以自己更换背景图片，供大家互相学习(This is a samll clock based matlab,you can change the background by yourself.Hope your enjoy about it!)

说明：  直线电机速度PID电流PID控制 SVPWM PMLSM(Speed PID current PID control of linear motor)

PDEPLOT 通用偏微分方程工具箱功能。(Toolbox PDEPLOT common feature of partial differential equations.)

Matlab source code for DCT-based watermarking for grayscale images. DCT-based watermark recovering without resorting to the uncorrupted original image. Digital watermarking has been proposed as a viable solution to the need of copyright protection and authentication of multimedia data in a networked environment, since it makes possible to identify the author, owner, distributor or authorized consumer of a document. A new watermarking technique to add a code to digital images is presented: the method operates in the frequency domain embedding a pseudo-random sequence of real numbers in a selected set of DCT coefficients. Watermark casting is performed by exploiting the masking characteristics of the Human Visual System, to ensure watermark invisibility. The embedded sequence is extracted without resorting to the original image, so that the proposed technique represents a major improvement to methods relying on the comparison between the watermarked and original images.