cqt_toolbox

目前心率变异性分析已成为当今生物医学工程研究的一个热点，再次我把我分享的心电信号的HRV分析工具上传，更好的服务正在研究这个方向的同行。(heart rate variability analysis tools)

实现数字信号的QPSK调制，并绘制频谱图(QPSK modulation of digital signal, and map spectrum)

适合初学者使用的非常清晰的人脸识别PCA算法，可运行成功。( a simple program, very useful!)

牛顿插值多项式，拉格朗日插值多项式，误差分析(Newton interpolation polynomial, Lagrange interpolation polynomial, the error analysis )

这个程序是一个风力机的三阶模型，采用桨距角控制，设计了转速的闭环控制系统(This program is the third-order model of a wind machine, using the pitch angle control, closed-loop control system design speed)

随机森林的matlab版本，重修改整理过的，可以直接拿来用，带实例。可以用来做回归法分析及分类。是机器学习中的快速有效的方法，基本不会产生过拟合。(Random Forest, an efficient regression and classification tool in area of machine learning. The Programms performs well and a demo is offered.)

High Speed Face Recognition Based on Discrete Cosine Transforms and Neural Networks

A new method for periodic scattering problems using 2nd kind boundary integral equations and the free-space Green s function, adding extra degrees of freedom on the unit cell walls, and imposing quasi-periodicity in an expanded linear system.(A new method for periodic scattering problems using 2nd kind boundary integral equations and the free-space Green s function, adding extra degrees of freedom on the unit cell walls, and imposing quasi-periodicity in an expanded linear system. This avoids the problems with the standard approach, namely: the quasi-periodic Green s function is slow to evaluate, it diverges at Wood s anomalies, and it does not handle large aspect ratios well. Our new approach cures all three issues, and can easily be `wrapped around an existing code (e.g. fast-multipole acceleration) for the isolated-obstacle scattering problem. It includes the latest talk slides: "A new integral representation for quasi-periodic scattering problems in two dimensions")

number of simulations to run

说明：  this is very good for master students and use in communication system course