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用matlab做一个图像处理界面，实现各种图像处理功能(Using matlab to do an image processing interface to achieve a variety of image processing functions)

巴特沃斯模拟低通滤波器——matlab源码(source code for butterworth analog low_pass filter design)

说明：  ：针对MP3 编码方式和帧结构进行分析，利用帧中的比例因子提出了一种压缩域水印算法。算法通过引入帧变化分析步 骤，很好地实现了水印的自适应嵌入。对于不同的系统要求，还可以通过修改门限信噪比的值SNRlim按需进行水印嵌入，使算法 具有更大灵活性。同时在牺牲一定的嵌入空间前提下，实现了水印信息的自同步。实验表明，对于不同风格的音乐，该水印算法 具有很好的不可听性。(In this paper，the encoding method and the frame structure of MP3 are expounded in detail，a watermark algorithm is proposed based on the scale factor in MP3 frame.By introducing the step of frame altering analysis，the algorithm can realize that watermarks is embedded adaptively.By modifying threshold SNRlim（the ratio of signal to noise），the algorithm can meet different requirements of some system，that is what enable the algorithm to have a bigger flexibility.Based on expense of some embedding positions，the watermark can be embedded with self-synchronization.The experiment results show this algorithm can get a good audio effect with various types of audio.)

说明：  matlab源程序 包含图像处理 OFDM的系统性能(matlab source code contains the OFDM system performance image processing)

Matlab高级讲义之计算机辅助设计与仿真技术概述(Matlab senior notes- an overview of computer-aided design and simulation)

由于matlab具有强大的矩阵运算优势，运用matlab计算平面梁的有限元方法(As a powerful matrix calculation matlab edge calculated using matlab finite element method for plane beam)

说明：  用matlab编写的灰色模型程序，可以实现拟合(Gray model )

代码描述的是FBMC系统的编解码，其中含有OQAM调制，最后画出了BER曲线图(this code is about the FBMC system including the encoding and decoding part, OQAM modulation and BER graph)

生成混沌种子。能对原始的数字水印信息进行加密，分别显示(Generation of Chaos seed. To the original information of the digital watermark is encrypted, respectively, show)

菱形相位解缠 很方便的 希望对大家有用啊 抓紧下载啊 呵呵呵(Diamond phase unwrapping easily lose hope that it would be useful to download ah Ha ha ha ah)