changjingsuojian

taget shooting to shoot the enemy

实现时滞系统稳定性分析的lMI工具箱，安装在matlab中使用，可以求解(Stability analysis of time-delay systems)

使用协同过滤的推荐系统测试代码Predicting movie ratings using collaborative filtering and latent concept extractors based on matrix decomposition methods like SVD and CUR on the movielens-100k dataset The project explores techniques for predicting unknown user ratings based on a large dataset of users and movie ratings.(Recommender-SystemsWe used 6 different recommender methods to predict user ratings across the data sets. Namely we set up Collaborative Filtering along with its baseline variant and Matrix decomposition techniques like Singular Value Decomposition and CUR. Moreover, we also implemented dimensionality reduction in these matrix decomposition techniques which preserved 90% of the energy so as to increase the computational efficiency while keeping the accuracy similar for these methods.)

程序为叠前偏移c语言程序，利用双程波波动方程有限差分法，此程序可以进行大角度成像。还有prestack common-shot split-step Fourier migration源代码(prestack fd migration，The 2-D prestack common-shot split-step Fourier migration)

计算层剪切模型刚度矩阵，可查询结构动力分析matlab实现。(Computational layer shear model stiffness matrix)

真正的基于SIP和windows的语音通信.rar 真正的基于SIP和windows的语音通信.rar

gtest libs something

matlab与stk的联合仿真的二次开发，这写的是四颗卫星访问地面站的例子，有兴趣可以来看一看，我们一起研究。(The second development of the joint simulation of MATLAB and stk, which is an example of four satellites visiting ground stations, is interesting to see, we will study together.)

说明：  利用wifi信号进行精准的定位，mit代码(locolizing using wifi)

本人基于qt5和stk10开发的互联调试程序(I developed an interconnected debugging program based on Qt5 and stk10)