How to remove the part of a signal less than xaxis =0 along with the peak

10 次查看（过去 30 天）
Ashwini Amin
Ashwini Amin 2019-6-21
评论： Ashwini Amin 2019-6-22
Hello All,
Could you please help me with the MATLAB command to remove(trim) part of the signal highlighted in red colour in the image
MATLABquery.JPG

请先登录，再回答此问题。

采纳的回答

Vishnu Vardhan
Vishnu Vardhan 2019-6-21
Hi Ashwini
you can use find function available in MATLAB
idx = find(x>=0);
plot(x(idx) ,y(idx)) %where x and y are the axis
Hope that helps!
  4 个评论
显示 2更早的评论
Ashwini Amin
Ashwini Amin 2019-6-22
Hello Vishnu ,
I have tried
idx = find(xaxisdataC>=0.1);
plot(xaxisdataC(idx) ,yaxisdataC(idx))
While doing so it is returning idx =[] (null )in my workspace.
Else could you please suggest a way to remove the part of signal from 0 upto the peak(present around value of 1000) in below image
MATLABquery2.JPG
Ashwini Amin
Ashwini Amin 2019-6-22
Can i use any kind of filter or windowing techniques. If yes please help me with the code.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Multirate Signal Processing 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by