Read_data

it s a matlab code that calculate the cercle lenght

数字锁相环数学模型,对有研究信号调制的数学建模.(Digital phase-locked loop mathematical model of research has the mathematical modeling of signal modulation.)

语音信号处理基音周期检测MATLAB程序仿真详解(Pitch detection of speech signal processing MATLAB program simulation Detailed )

说明：  大家好，我是建模的新手，希望大家相互交流共同提高。只是一个教程。很有用的哦。(Hello everyone, I am modeling the novice, I hope everyone together to improve mutual exchanges. Just a tutorial. Oh, very useful.)

说明：  作为MATLAB软件的初学者，一定要分析一些小算例，这里包含60个基本的小算例！(MATLAB software as a beginner, we must analyze some small example, contains 60 basic little example!)

There is a simulation of Orthogonal Frequency Division Multiplexing (OFDM) in by multipath fading channels. (There is a simulation of Orthogonal Frequency Division Multiplexing (OFDM) in by multipath fading channels.)

MATLAB2016b实现FFT快速傅里叶变换(MATLAB implementation of FFT fast Fourier transform)

该教程为MATLAB基础及其应用教程，介绍MATLAB的各种命令和函数(The tutorial is based on MATLAB and its application tutorial introduces various commands and functions of MATLAB)

主成分分析是把原来多个变量划为少数几个综合指标的一种统计分析方法。 从数学角度来看，这是一种降维处理技术。(Principal component analysis (PCA) is a statistical analysis method that divides a number of variables into a few comprehensive indexes.From a mathematical point of view, this is a kind of dimensionality reduction technology.)

利用三阶矩求双谱,直接输入信号，即可求出(calculate bispectrum using 3rd order cumulant)