fft_filter2015.3.23

高斯混合模型K均值算法matlab源程序用于说话人识别中(Gaussian mixture model K-means algorithm matlab source code for speaker recognition)

基于射线模型的浅海水声信道的仿真，采用解方程组算法得出本征路径数N，考虑多径和多普勒效应，并基于此加以自适应均衡技术进行均衡。(Ray simulation model of shallow water acoustic channel based on the use of solutions of equations or algorithms intrinsic number of paths N, consider multipath and Doppler effect, and based on this adaptive equalization techniques to be balanced.)

说明：  用于检测微弱信号的Duffing系统，这是我的毕业设计一部分，因为我做的时候也曾求取过很多资料，但是并没有找到，因此在我完成之后，上传这个代码，希望这个能帮助别人。 里面还有后续做的GUI界面实现的Duffing振子检测功能，可检测信号幅值和频率。(The Duffing system for detecting weak signals, this is part of my graduation project, because I also asked for a lot of information when I did it, but it was not found, so after I finished, upload this code, I hope this can help others.)

说明：  seir模型模拟传染病 人在康复以后产生了抗体就不会再得病。不同于SIS模型，我们在模型中引入康复者(The Recovered)，用 [公式] 表示，并满足总人数 [公式] 。这个时候就是SIR模型。一旦变为康复者，就不会再传染，即在概率传递过程中，一旦变为康复者，就没有概率再次转移为感染者或者易感者。我们假设感染者变为康复者的概率为我们来看下SIR模型的微分方程(SEIR model simulating infectious diseases)

说明：   灰度图像的二维Otsu自动阈值分割法 matlab源程序,这个程序不错，还能计算时间和二维直方图(Two-dimensional gray image segmentation Otsu automatic thresholding matlab source, this procedure well, but also the computing time and two-dimensional histogram)

详细介绍MATLAB线性矩阵不等式(LMI)的应用过程，实例丰富，上手较快！(Details MATLAB linear matrix inequality (LMI), the application process, examples of rich, to get started faster!)

matlab开发的记事本程序，能够实现简单的文本编辑工作(Notepad matlab development process to achieve a simple text editor)

升压变流器 及其控制策略 ( Boost_12_80V_30W.)

文章除了对基于DCT的图像压缩编码进行研究外，还对基于其他算法的图像压缩编码也作了相应的研究。在完成理论方面的研究后，应用MATLAB仿真软件，实现了基于DCT的图像压缩编码。(The article is in addition to picture that according to the DCT compress coding expatiating, returning to picture that according to other calculates way empress coded to also make the homologous introduction, make discuss more detailed with completely. At study that complete the theories empress, apply the MATLAB imitate true software, realizes according to the DCT picture compresses the coding.)

用gui学生成绩查询系统，初学，有待改善 (Query system with a gui student achievement, beginner, need to be improved)