how to process a random signal with bandpass filter, windowed integrator and maximum amplitude?

1 次查看（过去 30 天）
Jorge
Jorge 2014-8-11
编辑： Star Strider 2014-8-11
Hi all,
I've got a random signal with two vectors; time and pressure. I used a bandpass filter. I droped it here to take a look. I'm not sure if the signal is well filtered.
a=xlsread('Mini_With_Knock.xlsx','A2:A430')
b=xlsread('Mini_With_Knock.xlsx','B2:B430')
plot(a,b)
hold on
d = fdesign.bandpass('Fst1,Fp1,Fp2,Fst2,Ast1,Ap,Ast2',1e3,2e3,20e3,21e3,40,1,40,48e3);
Hd = design(d,'equiripple');
Hd.PersistentMemory = true;
fvtool(Hd);
y = filter(Hd,b);
abs=abs(y)
max=max(abs)
plot(a,y);
Then, I would like to take the maximum amplitude of the signal within a range of time. How could I do that? Should I used a windowed integrator?
Many thanks!

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 Signal Processing Toolbox 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