chen-system

an article about dvr

matlab program for comm.

MATLAB程序------材料力学简支梁剪力、弯矩及强度校核、截面设计(MATLAB program------ Mechanical Charpy shear, moment and strength check, cross-sectional design)

利用LSB算法去实现了电子水印技术。代码完全实现了嵌入以及提取， 算法同时包含了4种攻击算法以及利用psnr测量提取的水印和攻击后提取的水印(This algorithm describes digital watermark technique by using LSB. This code implement embedding and extraction. At the meanwhile, this algorithm includes 4 different kinds of attacks and in the end, measure psnr between extracted watermark and attacked extracted watermark)

A tapered Bar Stiffeness & Displacement Matrix

说明：  q-learning 实现 栅格迷宫路径规划，附带随机迷宫生成代码(Q-learning to achieve grid maze path planning, with random maze generation code)

grey forecasting,using poor information system(grey forecasting, using poor information system)

用MATLAB作的一个滤波程序 (MATLAB for a filtering process ///////////////////// )

基于最小二乘算法的SGP4轨道预报精度分析程序。(Precision analysis of SGP4 model based on Least Squares method.)

ofdm仿真系统matlab源程序，子载波调制方式为qam。(ofdm matlab simulation system source code, sub-carrier modulation for qam.)