matlab 求取旋变外包络

yayay2010

Matlab envelop函数

处理效果

• clear;clc;close all;
• A = readmatrix('Winding Plot 4.xlsx','Sheet','Winding Plot 4','Range','A2:B402');
• time = A(:,1);
• B = A(:,2);
• N=length(B);
• [up,down]=envelope(B,1,'peak');
• plot(time,B,'k',time,up,'r',time,down,'g');