matlab7_0_readme

生成ldpc码稀疏矩阵的matlab仿真程序，带有消除小环功能(Generate sparse matrix LDPC code of matlab simulation program, with the elimination of the small ring function)

matlab实现Butterworthlow低通滤波器仿真程序(matlab achieve Butterworthlow low-pass filter simulation program)

说明：  sift（尺度不变特征变换 scale invariant feature transform） 特征提取与匹配(Sift feature extraction and matching)

说明：  LDPC码的编译码算法的实现与仿真，以及平均误码率的分析。(LDPC code decoding algorithm implementation and simulation, and the average bit error rate analysis.)

pwm法计算二维光子晶体能带的通用程序 程序完整,且含有注释,很好用。能够计算三种基本晶格结构的光子能带。 (pwm method of two-dimensional photonic crystals with the general program)

这是基于MATLAB的人脸识别，将人脸基本能够清晰的识别出来(This is a MATLAB-based face recognition, basic human face can be clearly identified)

matlab code for tsp programming which is very good program

说明：  共轭梯度法，有例子。使用MATLAB编程，居实用性。(include example.)

利用matlab软件对.wav音频文件进行降采样的m文件(Down sampling .wav audio file )

求系统幅频响应和相频响应 求系统零极点图 二阶系统级联式 (Seeking system amplitude-frequency response and phase frequency response to zero-pole diagram for the system cascaded second-order system)