GMM

介绍基于MATLAB环境中遗传算法工具箱及应用，包括常用函数、工具箱、实例等资料(Describes an environment based on MATLAB genetic algorithm toolbox and applications, including commonly used functions, the toolbox, examples, etc.)

在MATLAB环境中，进行数字图像处理中常用到的小波函数系列之四(In the MATLAB environment, to carry out commonly used in digital image processing of the wavelet function series of four)

通过小波包分析计算柱塞流的特征值，奇异值(Through the wavelet packet analysis and calculation of the plunger flow characteristic value, singular value)

使用热力学第一定律计算内燃机的燃烧放热率(use the First Law of Thermodynamics to calculate the heat release rate of internal combustion engine)

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.)

this is the noise reduction source code. i hope this will be useful for every body who used it

切比雪夫数字低通滤波器设计及与rememz对比(Chebyshev low-pass digital filter design)

ch3=softt(h3,thr1 clear clc I=imread( lena512.bmp ) imshow(I) I=double(I) II=I+30*randn(size(I)) figure imshow(II,[]) [a1,h1,v1,d1]=dwt2(II, sym8 ) [a2,h2,v2,d2]=dwt2(a1, sym8 ) [a3,h3,v3,d3]=dwt2(a2, sym8 ) sigma=median(abs(d1(:)))/0.6745 x=3*sigma thr1=x*2^(-1) thr2=x*2^(-0.5) thr3=x 小波图像去噪( ch3=softt(h3,thr1 clear clc I=imread( lena512.bmp ) imshow(I) I=double(I) II=I+30*randn(size(I)) figure imshow(II,[]) [a1,h1,v1,d1]=dwt2(II, sym8 ) [a2,h2,v2,d2]=dwt2(a1, sym8 ) [a3,h3,v3,d3]=dwt2(a2, sym8 ) sigma=median(abs(d1(:)))/0.6745 x=3*sigma thr1=x*2^(-1) thr2=x*2^(-0.5) thr3=x )

APF基于ip-iq的Simulink仿真模型，学习及分析APF很好的资料，验证可用，文件仅用于学习交流，严禁用于商业用途。(APF ip-iq Simulink models based APF study and analysis of good information, verification is available only for study and exchange files, non-commercial use.)

取音频左声道，并画出音频幅值频谱及频率能量图(Take the audio left channel, and draw the the audio amplitude spectrum and frequency energy diagram)