ra-ti-bo

本上传是在matlab环境下实现图像的基于DCT的JPEG压缩，上传内容包括主程序、子函数和实验原理pdf。可供朋友学习与参考。(This upload is in the matlab environment to achieve the image DCT-based JPEG compression, upload content, including the main program, subroutine and experimental principles of pdf. For friends to study and reference.)

This is an interface GUI for matlab to make soud in and out from a pc sound card.

说明：  有关matlab仿真中，图形用户界面的文章。通俗易懂。(On the matlab simulation, graphical user interface of the article. User-friendly.)

it gives some importance abt fast ica using negentropy

说明：  基于非负矩阵分解（NMF）的人脸特征提取算法，NMF基本思想是找到一个线性子空间W，使的构成子空间的基本图像的像素点都是正值，而且人脸图像在子空间上的投影系数也是正数(Non-negative Matrix Factorization (NMF) of facial feature extraction algorithm, NMF basic idea is to find a linear sub-space W, so that the composition of sub-space of the basic image pixels are positive, and face image in the sub-space projection coefficient is positive)

matlab模拟退火中源程序，基本例程都在压缩包中了。(simulated annealing matlab source code, the basic routines are in a compressed package. )

用matab实现离散信号a(n)和b(n)的线性卷积和圆周时域卷积，并显示。(A discrete signal with matab a (n) and b (n) linear time-domain convolution and circular convolution, and display.)

calic image compression

一些基本的語法練習，可以拿來實際應用，包含了註解與程式(Some basic grammar exercises, can be used to practical applications, including annotations and programs)

说明：  利用matlab仿真GaAs/AlGaAs量子阱材料的载流子特性(simulate the electrons and holes characteristics in GaAs/AlGaAs QW)