hill-encrypt

positively invariant sets and their application to the analysis and synthesis of control systems.

QPSKtiaozhi的一种方式，采用包给了白噪声，加入了两路分别处理条制服的方式(QPSKtiaozhi a way, using the packet to the white noise, to join the two handle pieces uniform)

Matlab得基础教程，其在高等数学，线性代数，数值分析中应用和实现，以及较经典的数学建模。(Matlab was based tutorial, its higher mathematics, linear algebra, numerical analysis and implementation of applications, as well as more classical mathematical modeling.)

说明：  用于检测微弱信号的Duffing系统，这是我的毕业设计一部分，因为我做的时候也曾求取过很多资料，但是并没有找到，因此在我完成之后，上传这个代码，希望这个能帮助别人。 里面还有后续做的GUI界面实现的Duffing振子检测功能，可检测信号幅值和频率。(The Duffing system for detecting weak signals, this is part of my graduation project, because I also asked for a lot of information when I did it, but it was not found, so after I finished, upload this code, I hope this can help others.)

sdof vibraion analysis

啁啾光栅matlab仿真程序，方便学习光栅特性(Chirped grating matlab simulation program to facilitate the learning Grating)

差分进化运算 matlab的源代码 操作简便，可以直接带入。(Differential evolution source computing)

常规波束形成，一个期望信号，一个干扰，高斯白噪声(the CBF simulation)

ldpc码的编解码实现，大学数值分析算法，LCMV优化设计阵列处理信号。( Codec ldpc code implementation University of numerical analysis algorithms, LCMV optimization design array signal processing.)

Polar coding and decoding program simulation