Encoder

余弦波是渐变的，当ωt+φ的取值变化量很小时，Y的变化量也是很微小的。余弦波的这一特性保证了嵌入水印后相邻字符灰度值差别不大，人眼无法识别，从而保证了水印的不可见性和图像质量。(Cosine wave is gradual, and when ωt+ φ values variation is very small, Y amount of change is very small. Cosine waves This feature ensures that watermarked gray value of adjacent character is not very different, the human eye does not recognize, thus ensuring the invisibility of watermark and image quality.)

人脸识别匹配的源代码，并配有部分人脸照片，欢迎下载学习(The source code of Face recognition , with some face photos, welcome to learn.)

MWC sub nyquist sampling Compressive sensing

matlab环境下利用中值滤波函数对黑色图像的还原处理(Matlab environment using median filtering function reduction treatment on black image)

Matlab source code related to jpeg. which is useful for the developers .. compression and decompression ..

消除文法的左递归，包括直接左递归和间接左递归(digui)

利用matlab 仿真 ofdm 通信系统(ofdm by matlab)

采用自适应信号处理技术的低成本回波抵消器(Adaptive signal processing techniques echo canceler cost)

创建雷克子波，可用于地震资料分析与反演等，Matlab环境。(Create ricker wavelet)

说明：  用matlab实现一个旋转的地球，地球上可以看到海洋以及高地的差别(Using MatLab program to make a AVI file which playing a movie with Rotation Earth, which have topograph.)