Recreate smoothing filter design

1 次查看（过去 30 天）

显示更早的评论

Konvictus177 2022-3-9

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1667939-recreate-smoothing-filter-design

评论： Mathieu NOE 2022-3-21

Hi,

I have two independet data sets. First data set = unfiltered data in blue. Second data set = filtered data in yellow.

What filter applied on the unfiltered blue data set would give me a very similar result to the yellow data.

I am basically trying to figure out what filter my hardware is using. I am especially interested in why the drop is curved and which filter would give me this curvy behaviour. I am unable to simulate this with a simple movmean.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Mathieu NOE 2022-3-21

hello

if you use tfestimate on your both data sets , you should be able to get a Bode plot of your "filter". From there you can try fit a FIR or IIR model using invfreqs or invfreqz

请先登录，再进行评论。

请先登录，再回答此问题。