Re: How to filter noise when it has the same frequency as the signal
- From: "Paul Hovnanian P.E." <paul@xxxxxxxxxxxxx>
- Date: Fri, 05 Sep 2008 16:55:05 -0700
"X.Y." wrote:
It seems that they just has a difference on the magnitude.
P.S. It is a OOK signal on receiver.
The wave on oscillograph can be found on the following link:
http://att.newsmth.net/att.php?s.172.248797.578.png
Thanks in advance!
I don't see 'the same frequency'. I see a square wave signal with a
period of 200 µS and noise at approx. 50x the signal fundamental.
What sort of time and/or phase error can you live with? Its possible
that a simple low pass filter followed by level detection will do the
trick.
--
Paul Hovnanian mailto:Paul@xxxxxxxxxxxxx
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