matlab_apply

this learn you about pam modulation

This simulation demonstrates the running of a DC motor with controlled (thyristor) line rectification (5 hp 240V 1200 rpm) rated torque Tr = 30 N.m.Results of out current and speed of the dc motor can be observed together with the rectifier voltage

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.)

直接序列扩频 实现扩频、解扩还有。MATLAB实现环境。其中解调用的是BPSK。(Spread Spectrum Direct Sequence Spread Spectrum, despreading there. MATLAB implementation environment. One solution is called BPSK.)

乘法表,用来计算数字乘法，从1到9的各种整数积(chengfabiao,yongyujisanshuzichengfa)

陆吾生有关凸优化视频教程中的相应的子函数，包括牛顿法等(convex optimization)

qr法求特征值和特征向量 QR法能够避免矩阵奇异带来的错误，并能求解特征值有重根的情况(qr France seek eigenvalues and eigenvectors QR method can avoid the matrix singularity caused by errors, and can solve the eigenvalue of the double roots)

wavelet programme for watermarking

用matlab实现广义最小二乘的数值运算，欢迎大家参考。(Achieve numerical computation of generalized least squares)

通过求解Chirstoff方程，求解出材料的群速度和慢度面(compute the sowless and group velocity)