微电网仿真

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.)

r tree generation in matlab is given

利用matlab语言实现常微分方程的求解，可以很好的解决常微分方程问题(Matlab language to achieve the solution of ordinary differential equations, can solve the problems of ordinary differential equations)

DAB型全桥DC-DC变换器与3相PWM型变换器级联仿真，可用于充放电系统及新能源领域，实现能量的双向流动。(DAB full-bridge DC-DC converter with three-phase PWM converter cascade simulation model can be used to charge and discharge systems and new energy field, two-way flow of energy.)

说明：  惯性仪器测试与数据分析 [严恭敏 编] 2012年版，该书配套的MATLAB代码，非常具有学习意义。(Inertial instrument test and data analysis [yan gongmin, Ed.] 2012 edition, the book is matched with MATLAB code, which is of great learning significance)

适合任何信号的模糊函数的画法。运行时要明白要要输入的那几个字母的实际含义。首先要将你的信号进行离散化，Signal elements（u_basic）就是你的信号矢量。Frequency coding in units of 1/tb你信号的采样频率，Over sampling ratio表示要满足采样定理（采样频率大于两边以上信号最高频率），其他的直接翻译过来就可以了 (Ambiguity function for any signal of painting. Run-time to understand that to enter a few letters to the actual meaning. First, you want to discrete signals, Signal elements (u_basic) is your signal vector. Frequency coding in units of 1/tb your signal sampling frequency, Over sampling ratio that should satisfy the sampling theorem (sampling frequency is greater than the highest frequency signal on both sides of the above), the other can be directly translated to the)

这是matlab编程基本工具，希望对大家有点帮助(This is the basic tool for Matlab programming, we hope to help a bit)

matlab灰度图像的边缘提取：直方图均衡化，canny算子实现一阶偏微分，计算梯度幅值和方向(matlab Gray Image Edge Extraction: histogram equalization, canny realization of first-order partial differential operator, calculate the gradient magnitude and direction)

此程序为解线性方程组的Gauss-Serdel迭代法的源程序(This procedure for solving linear equations Gauss-Serdel source iteration)

说明：  一种关于图像阈值分割的算法，自己试过很好用。(An image threshold segmentation algorithm, I have tried it very well.)