matlabga

chapter3 sutton book exercise

快速傅里叶变换 (FFT) 实现，给定信号x(t)=sin(2πf0t)，f0=50Hz，对x(t)以fs=200Hz进行抽样，抽样点数为N=16。编写程序实现对x(n)的快速傅里叶变换，求得相应的X(K)。(Fast Fourier Transform (FFT) to achieve a given signal x (t) = sin (2πf0t), f0 = 50Hz, for x (t) with fs = 200Hz sampling, the sampling points is N = 16. Procedures for the preparation of x (n) of the fast Fourier transform, obtained by the corresponding X (K).)

对256×256大小的8bit灰度lena图像进行仿真计算，稀疏矩阵采用DCT矩阵，观测矩阵采用高斯随机矩阵，重构算法采用OMP（正交匹配追踪）算法。 (256256 size 8bit grayscale lena image simulation, sparse matrix DCT matrix, and observation matrix using Gaussian random matrix reconstruction algorithm using OMP (orthogonal matching pursuit) algorithm.)

isar成像之前做的，用于回波数据的处理，比较有用的(isar imaging done before, for the echo data processing, the more useful)

计算Allan方差，并求出与Allan方差相关的系数(Allan variance calculation )

Stores and customizes numeric array or cell array in Excel workbook using ActiveX interface

数字信号处理，输入一段加有噪声的信号，经过一段滤波程序后输出有用波形(Digital signal processing, input a signal with noise added, after a filtering procedure useful for waveform output)

利用matlab验证循环码的编码方法，用matlab编码得到所有许用码组。(Matlab validation circulation yards coding method, matlab code get all the allowable yards group. )

彩色图像的自蛇模型主要用于彩色图像的分割，主要利用图像的彩色信息和梯度信息(Color image since snake model is mainly used for color image segmentation, mainly using image color information and gradient information )

MATLAB CODE FOR STEGO IMAGE HIDING