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Thread Subject:
Low frequency filter

Subject: Low frequency filter

From: Peta

Date: 29 Apr, 2010 01:43:04

Message: 1 of 1

Hi everyone,
I'm pretty new to Matlab and only know a few basic commands.
At the moment however I have some wave data retrieved from pressure sensors at 4minute bursts over 24hours that has a 50second basin scale oscillation. I need to filter out the long wave period data using a low frequency filter set at 10 seconds wave period.
That is, I need to filter out all the signals with a period greater than 10 seconds.
The size of the data is [1 115200].
Sampling frequency is 20Hz.
If there's any one who can help, give me some guidance, it would be much appreciated.
Peta

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