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The code implements the following paper: Guorong Xuan, Jiang Zhu, Jidong Chen, Shi Y.Q., Zhicheng Ni, Wei Su, "Distortionless data hiding based on integer wavelet transform" IET Electronics Letters, Volume: 38, Issue 25, page 1646- 1648, December 2002. (ISSN: 0013-5194) The watermark embedding and extraction modules have been implemented separately. The watermark embedding module embeds the watermark using bitplane compression in the integer wavelet transform domain. The watermark extraction module extracts the previously embedded watermark and restores the original image. A logo image is used as a watermark but can be replaced with any thing.

数据的核密度估计及平滑处理 包含各种窗函数(Kernel Smoothing Toolbox for matlab)

pv three phase grid connected system

在虚拟仿真环境下进行了几种不同规格零件的抓取试验。在ADAMS中进行仿真试验设置，创建传感器及仿真脚本命令，对两种规格零件进行了抓取试验分析，进一步验证结构设计的正确性及合理性。(the capture of several parts with different specification test was carried out in a virtual simulation environment. To further verify the correctness and the reasonable of the structural design, in ADAMS simulation test, the crawled test and analysis was done for two specifications of parts with the creating of command script and sensor.)

含有时滞的系统积分分离PID matlab仿真，程序里面可修改控制参数。(The system contains delay integral separation PID matlab simulation program which can modify the control parameters.)

对于初学者具有参考意义，相控阵天线的方向图（切比雪夫加权），包含位置式PID算法、积分分离式PID，实现了对10个数字音的识别程序利用matlab GUI实现的串口编程例子，验证可用。(For beginners with a reference value, Phased array antenna pattern (Chebyshev weights), It contains positional PID algorithm, integral separate PID, Realization of 10 digital audio recognition program Use serial programming examples matlab GUI implementation, Verification is available.)

为《数值分析方法》第四版-中文版-电子工业出版社。书内包括英文版教材删去的补充内容，以及习题答案。对于看英文教材有困难的学习者有帮助。(For the numerical analysis method, a fourth edition-Chinese version-publishing house of electronics industry. Within the book in English teaching materials including deleting added content, and the keys of the exercises. For those learners who have difficults in watching English teaching materials ,it s helpful. )

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pscad与matlab接口的仿真，采用fortran编写脚本，测试成功，可直接使用(pscad simulation with matlab interface using the fortran scripting, the test is successful, can be used directly)

In the previous chapters we have encountered a number of ways to process digital on