3DBall-down-

QPSK 调制全称 Quadrature Phase Shift Keying，意为正交相移键控，是 一种数字调制方式。它的频带利用率高，且抗干扰性能强，已经成为现代通信 技术中一种十分重要的调制解调方(QPSK’s full name is Quadrature Phaseshift Keying which is a kind of digital modulation types. It has been widely used in wireless communications and has become very important in modern communication because of its high bandwidth efficiency and strong anti-interference performance)

matlap file for SPWM

说明：  讲述电力电子技术中变换技术和控制技术的指导用书(About the power electronics and control technology in the transformation of the guide book)

简单来说，卡尔曼滤波器是一个"optimal recursive data processing algorithm（最优化自回归数据处理算法）"。对于解决很大部分的问题，他是最优，效率最高甚至是最有用的。(In short, the Kalman filter is an " optimal recursive data processing algorithm (optimal autoregressive data processing algorithm)." For most of the problems to solve it, he is the best, most efficient or even useful.)

matlab逆broyden迭代法计算方程(Matlab broyden inverse iteration calculation equation)

pll锁相环编程程序 可以使用 matlab 编程语言(The program can be used PLL phase locked loopThe MATLAB programming language )

计算脉搏信号的方法 PPG 脉搏波速度计算 血压(Calculation of Blood Pulse Transit Time from PPG PPG pulse signal calculation method of pulse wave velocity calculation)

提供人行走时的微动分析数据与处理例子程序，对后续人体微动特性研究做基础，适合相关研究人员学习。(Contributed jog walking example of analytical data processing procedures, the study of human characteristics follow fretting foundation for research to learn.)

希尔伯特黄变换(HHT)的 完整 MATLAB程序 (Hilbert Huang Transform (HHT) of the complete MATLAB program)

Avi read,Cut detection from video