QPSK

利用patchwork方法，嵌入0-1水印。可设置像素修改值、选择各种经典的攻击方式和控制攻击强弱。返回提取的水印信息和峰值信噪比。利用Matlab编写。(The use of patchwork approach, embedding the watermark 0-1. Modify pixel values can be set to choose a variety of classic attacks and control the strength of the attack. Back to extract the watermark information and peak signal to noise ratio. Prepared using Matlab.)

nmls to solve stochastic problems

Some useful matlab codes for digital communication systems

generate Fig. 1.27 of text

实现了L=3，h=0.5,M,RC升余弦CPM调制(Achieve L = 3, RC raised cosine CPM modulation)

经典书籍《通信系统仿真原理与无线应用》chap8部分课后题仿真源代码，用MATLAB编写的(Classic book, )

calculating coefficients

matlab算最短路径的算法，很好用大家可以试一试(Matlab operator of the shortest path algorithm, we can use a good try)

利用自抗扰控制器理论，提出了一种新颖的永磁同步电动机无位置传感器矢量控制系统 的转速估计方法。(A novel speed estimation approach to sensorless vector control of Permanent Magnet Synchronous Motor (PMSM) based on Active Disturbance Rejection Controller (ADRC) was proposed. )

exercise 4 for icarnegie ssd4