matlab 求取旋变外包络
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);
[*]=envelope(B,1,'peak');
[*]plot(time,B,'k',time,up,'r',time,down,'g');
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