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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.

program about iterative learning control

可以将信号很好的进行LMD分解，很好用，自己试试看(The signal can be well decomposed into LMD)

二代小波变换安装程序，希望初学者掌握基本既能(Second generation wavelet transform setup, I hope both beginners master the basic)

QPSK信号在MATLAB上的仿真代码，载波频率为10HZ，信息速率为1Baud，信号经过带宽为2HZ的系统。(QPSK signal in the simulation of MATLAB code, the carrier frequency to 10HZ, the information rate of 1Baud, signal bandwidth of the system 2HZ.)

MATLAB高级讲义实例4(控制系统的分析方法)(MATLAB examples of senior notes 4 (Control System Analysis Method))

产生16路信号，画出16路原始信号的频谱叠加图以及滤波器响应，并画出结果信号的时域和频域波形(Generate 16-channel signal, draw 16 original signal spectrum overlay and a filter response, and draw result signals in time domain and frequency domain waveforms)

基于matlab的目标回波信号的相干积累过程分析与仿真。其中包括目标的积累完成过程。(Based on the objectives of matlab coherent echo signal accumulation process analysis and simulation. Including the goal to complete the process of accumulation.)

说明：  implimentation sous matlab

说明：  神经网络与免疫算法的结合，用matlab编程实现小功能(Neural network with a combination of immune algorithm with a small functional programming matlab)