imageAuthentication0_1

Introduction to four classic articles OFDM

说明：  OFDM在AWGN信道下的仿真，用MATLAB实现，一共有6个程序。(OFDM AWGN under the simulation, using MATLAB, a total of six procedures.)

计算数据频谱 通过傅里叶变换 查看数据的频率分布特征(View data Frequency distributions of calculated data spectrum by Fourier transform)

matlab中wave文件的信号生成功能源代码，欢迎使用(Matlab document which wave signals Health successful energy code, welcomed the use of)

gdtele suanfa shi matlab biancheng yuyan

利用matlab读取libsvm的工具包，实现数据的自动分类。压缩包里有训练文件及测试文件。(Read libsvm using matlab toolkit, automatic classification of data. Compression bag has training documents and test files.)

matlab程序求图像的梯度，获得图像的纹理信息丰富的点或边缘点、角点等。(to get the gradient of mage, the image texture information rich points or edge, corner, etc.)

读取水平单层介质单炮记录进行p-sv转换波动校正，并输出动校正之后的结果(Reading level single medium shot record the results of p-sv conversion fluctuation correction and output after NMO)

metlab computation for UPML

说明：  基于matlab。利用FFT计算信号的频谱并与信号的真实频谱的抽样比较。 脚本文件T2F.m定义了函数T2F，计算信号的傅立叶变换。(Based on matlab. Calculated using FFT frequency spectrum and the true spectrum of the signal sample comparison. Script file defines a function T2F.m T2F, calculate the Fourier transform of the signal.)