GNU Radio has a neat feature that allows you to "tag" a certain sample in your data stream that can be used to flag or signal action in future processing steps. For example, within an array of data, I could look for a certain marker/sequence/code, and then place a 'tag' on that sample as a hint for a later processing stage.
To my knowledge, there is no explicit analog of this in LabView, but I've been thinking about how you might be able to do something similar. The only idea I had was to create an entirely separate array, say of booleans, that was the same size as my data stream...but that necessitates having to carry around this other array. Saving a smaller array of indexes of certain events could work, but doesn't really seem like an elegant solution, and could be trouble if I'm purging parts of the data stream as I go.
Anyway...has anyone thought about this at all? I suppose it's not really a USRP thing as much as it is a programing methodolgy. I know there probably aren't many gnuradio users here (I'm only begin to dabble in GR myself), but was hoping maybe some of the NI application wizards who see on both sides of the wall might have some ideas.
Thanks!
---
Brandon
