MATLAB-FFT

使用matlab实现的线性及非线性灰度变换实验，其中有原理说明(Matlab implementation of linear and nonlinear gray-scale transformation experiments, including the principle of description)

语音信号的倒谱分析，语音采样频率44000hz，取20ms一帧语音，样点数880个，起始序号40000，加汉明窗，求倒谱图(Cepstrum analysis of the speech signal, voice sampling frequency 44000hz, take 20ms one voice, the number of samples 880, starting serial number 40000, Jia Hanming window, inverted spectrum)

角度和时延联合估计的DOA算法，在matlab环境下实现(Angle and delay DOA joint estimation algorithm in matlab environment to achieve)

使用C语言在matlab中编程解决非线性回归问题(Nonlinear Regression)

sift算子中高斯金字塔和DOG的生成，只是该算子的最初步骤(sift operator：the generation of Gaussian pyramid and DOG。it is only the first steps)

给出一个关于怎样实现滤波的matlab算法实例，让读者很容易的掌握滤波算法的书写。(It offres us a programmer that tells us how to write .)

matlab实用程序百例，适合初学者学习(matlab utility, one hundred cases, suitable for beginners to learn)

说明：  可以实现图片中的数字识别，并将识别之后的数字写入文本文件中，数字可以式多行，可以长度不同才可以(But realize the number recognition in the picture, and write the recognized number into the text file.)

DFT数字信号采集滤波器实例演示程序，很实用的一个小程序。(DFT filter digital signal acquisition example demo program, it is a small utility program.)

说明：  关于LDPC编译码的程序，希望大家喜欢。 其中有具体的编码，解码，调制等模块。(on LDPC encryption procedures, hope you like them. Which specific encoding, decoding, modulation and other modules.)