清空筛选条件
清空筛选条件

how do you plot fft of each sensor for both test

2 次查看（过去 30 天）
zeshan chishti
zeshan chishti 2020-11-16
评论： zeshan chishti 2020-11-25
t1=load('201710h1.lvm'); %test 1
t2=load('201710h2.lvm'); %test 2
subplot(3,2,1);
x= t1 (:,1); % time in test 1
sin = t1 (:,2); % sensor 1 in test 1
plot (x,sin)
title('test 1 sensor 1 against time')
xlabel('time')
ylabel('Sesnor1')
subplot(3,2,3);
x1= t1 (:,1);
sin1 = t1 (:,3);
plot (x1,sin1)
title('test 1 sensor 2 against time')
xlabel('time')
ylabel('Sesnor2')
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
subplot(3,2,2);
x2= t2 (:,1);
sin2 = t2 (:,2);
plot (x2,sin2)
title('test 2 sensor 1 against time')
xlabel('time')
ylabel('Sesnor1')
subplot(3,2,4);
x3= t2 (:,1);
sin3 = t2 (:,3);
plot (x3,sin3)
title('test 2 sensor 2 against time')
xlabel('time')
ylabel('Sesnor2')

请先登录，再回答此问题。

采纳的回答

Hrishikesh Borate
Hrishikesh Borate 2020-11-17
Hi,
I understand that you want to calculate and plot FFT for each sensor for both the tests. According to the code shared, these values are stored in variables: sin, sin1, sin2, sin3.
You can use the fft function for the same.

更多回答（1 个）

Peter Perkins
Peter Perkins 2020-11-19
Zeshan, you have all your data in a numeric array, t1. I strongly recommend that you convert that to a timetable. Then your plot is simple. I don't know what units your times are in, but something like
tt = array2timetable(t1(:,2:end),'RowTimes',seconds(t1(:,1));
stackedplot(tt)

类别

在 Help Center 和 File Exchange 中查找有关 Time Series Events 的更多信息

标签

产品


版本

R2020b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by