Hey Rich, That'll definitely give me a good start, thank you so much! I'll check it out.
Best, Ali On Wed, Mar 11, 2015 at 4:35 PM, Richard Bell <richard.be...@gmail.com> wrote: > Hey, > > I can't tell you how you should do this. I can tell you that you will need > to get comfortable with tags and probably messages to achieve these things > you want. If you haven't already, check out the gnuradio tutorial on > programming topics to get started. They do a pretty good job explaining it > there. > http://gnuradio.org/redmine/projects/gnuradio/wiki/Guided_Tutorial_Programming_Topics > > For example, suppose you only wanted to store a certain stream of data > after a preamble was detected. You could use a 'correlate and sync - tag' > block to adds tags at the start of your data to the stream and then feed > this into a 'tagged file sink' block which will only put the portion after > the tag into the file. You want a lot more functionality then this, but > this could get you going in the right direction. > > Rich > > On Wed, Mar 11, 2015 at 2:24 PM, Ali Riaz <ari...@hawk.iit.edu> wrote: > >> Hello everyone, >> >> So I was trying to capture continuous IQ data from my USRP N200, and this >> needs to be done for about a week, but because the amount of data is >> ginormous, that's doesn't seem feasible at all. Instead, what I'm now >> thinking of doing is processing the data in gnuradio companion in real time >> and just extracting certain parameters from the processed data, for >> instance, I would like to detect if there's a signal present or not, at >> what time was the signal detected, what's the maximum amplitude of the >> signal, how long did the signal last etc, and just store those pieces of >> information in a file. >> >> Are there any pre-existing blocks that I may use for this purpose? If >> not, can someone please guide me as to how to accomplish this task? >> >> This is what my flow graph looks like at the moment: >> http://imgur.com/a/O2gXi >> >> Thank you, >> >> Best, >> Ali >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >> >
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