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[Discuss-gnuradio] Removing Correlator False Tags


From: Richard Bell
Subject: [Discuss-gnuradio] Removing Correlator False Tags
Date: Mon, 20 Jul 2015 07:20:47 -0700

Hi all,
 
I need some help solving this problem. To recap, myself and Andy Wall have come to the conclusion and agreed that the Correlation Estimator block will insert false correlation tags into a stream of data if the correlation peak happens to exist at the end or beginning of a block of notuput_items. I am writing a block that proceeds the Correlation Estimator block whose job it is to remove these false tags.
 
The scenario I'm having trouble dealing with is when a false tag is placed at the end of a block, because I won't know it's a false tag until I can check the first item of the next block. As far as I'm aware of, once I'm in the next block of noutput_items, I've lost the ability to change tags in the previous block (i.e. I can't effect tags in a previous call to work). How would you go about handling this, is there already a mechanism I'm not aware of?
 
Rich
 
 
 

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