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基于LSB的直接4bit替换法，就是直接用秘密图像像素值的高4bit去替换载体图像像素值的低4bit。 (Direct 4bit substitution, that is, the direct use of the secret image pixel values of the high-4bit image pixel value to replace the carrier' s low 4bit.)

《数字图像处理》(Matlab版)第八章中JPEG的近似实现，附带了自己的注释(" Digital Image Processing" (Matlab version) Chapter VIII of the approximate realization of JPEG, with my own comments)

SEGY是指地震数据模式。SEG-Y格式是由SEG 提出的标准磁带数据格式之一，它是石油勘探行业地震数据的最为普遍的格式之一。本文介绍了SEGY格式与SU格式之间的转化，SEGY格式数据的处理，及相关函数(SEGY is a seismic data format.This paper introduces the transfer between SEGY and SU, the processing of SEGY data and some related functions. )

ESPRINT谱估计，计算DOA，可以与capone进行对比。(ESPRINT spectrum estimation calculates DOA, with capone comparison.)

OFDM信号及其频谱的matlab仿真源代码，输入信号为随机产生的二进制序列并插入了保护间隔(OFDM signal and its spectrum simulation matlab source code, the input signal for randomly generated binary sequence and insert a guard interval)

能够实现四步相移解包裹，对包裹相位能较好的分离出来(unwrap algorithm)

500个零件4台车床加工，用动态规划逆序方法求需要的最短时间(dynamic programming backward)

induction motor in matlab

这是一个用在数字预失真系统中的延时估计算法matlab程序，已经通过仿真实现。(this is a matlab program of delay estimation algorithm which uesd in the digital predistortion system,and it has accomplish the function.)

很好用的FastICA工具箱，以及使用攻略，非常容易入手学习。(Good use of FastICA toolbox, and the use of the Raiders, very easy to start learning.)