What is the best use for an idealfilter?

5 次查看（过去 30 天）
Mikk Laanes
Mikk Laanes 2021-6-3
评论： Mathieu NOE 2021-6-4
I was recently looking for appropriate filters for filtering gigabytes of strain and acceleration data within a specific frequency ranges. I came across the idealfilter function, which appeared to be quite fast and performed exceptionally well in comparison to high order (+20) IIR and FIR filters.
Thus, I have come to wonder what are the downsides of using the idealfilter in comparison to common IIR filters (cheby2, butter) for example. I could notice that the upsides are speed and good attenuation. Is idealfilter only performing well with 1D vector applications?
I have attached a code, where I apply some filtering to a Tohoku earthquake recording (in .mat format) to play around with, if needed.
Would be grateful if you could give some advise and share your experience.
  1 个评论
Mathieu NOE
Mathieu NOE 2021-6-4
hi
I wonder if idealfilter is more or less in one package what we used to do with filtfilt combined with your prefered FIR or IIR filter

请先登录，再进行评论。

请先登录，再回答此问题。

回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Butterworth 的更多信息

标签

产品


版本

R2018b

Community Treasure Hunt

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

Start Hunting!

Translated by