matlab_code

基于DWT的数字水印嵌入算法，已进行过调试，可以直接使用(DWT-based digital watermarking algorithm, has been commissioning, can be used directly)

光子学报上单目测距的经典方法，很实用，结果十分理想(Optics Monocular distance on the classic method, very practical, very good results)

all transformation in matlab

用FDTD的方法对3维光子晶体的光子带隙进行模拟，得要直观图。 程序用MATLAB编写。(With the FDTD method on three-dimensional photonic band gap photonic crystal simulation, may be visual map. Programs written with MATLAB.)

Leach Protocol Script

A good survvy in the field of segment and other direction.How to choose a better method to improve the effect.

LMD算法利用极值平均、边界局部特征尺度延拓、HDJ极值延拓法、基于ISBM延拓、平行延拓法等对数据拓展，降低端点效应。(The LMD algorithm uses the extreme value average, the boundary local characteristic scale extension, the HDJ extreme value extension method, based on the ISBM extension, the parallel extension method and so on to expand the data, reduces the end effect.)

说明：  利用normrnnd函数生成1000个标准正态分布随机数，绘制频率直方图和经验分布图(Using normrnnd function to generate 1000 standard normal distribution random numbers, and draw frequency histogram and empirical distribution map)

image reconstruction

模数转换的数字锁相环，代码中有详细的说明(digital phase lock loop)