ped1

快速fft的自编程序和DHT的程序，帮助理解FFT的原理和DHT的原理，进一步加快算法研究做好准备(Quick fft of self procedures and DHT program to help understand the principles and DHT FFT principle, ready to further accelerate the algorithm)

系统辨识的经典之作，作者为matlab系统辨识工具箱的编写者。(System Identification classic, author matlab System Identification Toolbox writers.)

LDPC decoder for point to point

sift算法实现的图像匹配程序，使用matlab编写的，多用于图像拼接，融合等领域。(sift algorithm of image matching procedures, the use of matlab prepared are used for image mosaic, integration and other fields.)

自己编写的平坦因子理论以及信息熵的程序，可用于学习和交流(I have written a flat factor theory, and entropy procedure can be used for learning and communication)

在matlab环境下对图像进行对比度以及亮度处理，可以输入对比度参数的大小。(Image contrast in the Matlab environment, you can enter the size of the contrast parameter.)

基于fft的三维高斯粗糙面生成，可以快速模拟三维高斯粗糙面，便于更深层次的研究(3d gauss rough surface)

简要的Gauss列主元消去法，很实用，用matlab实现，还有一个图例，程序说明很详细(brief Gauss main-element elimination, very practical, using Matlab to achieve, there is a legend, a very detailed description of the procedures)

说明：  MALAB中进行控制系统设计需要产生各种特殊模拟信号，此M文件给出相关信号的产生方法。(MALAB in control system design need to generate a variety of special analog signal, the M document given signal, the method of correlation.)

Chevyshev algoritmo de filtro