On May 24, 2010, at 10:06 PM, John Wu wrote:
> Hi all, I am a fresh on usrp and gnuradio, now I want to use them to support locate a cell phone, and what I know is locate a cell phone need to use triangulation method. Anyone know if gnuradio contain triangulation block or any open triangulation algorithm available?
>
> Thanks!
John, the dilemma you will face in locating a cell phone will be the coding that it incorporates as it communicates with towers. If you know the signal that a particular phone emits, or of you can establish communication with one, then the direction finding should be trivial. I am working on ADF now, but my interest is in locating the towers, not the phones.
What you may need to do is set up your GR to act like a tower, establish comm with a phone and then use an antenna array to determine it's location. I just recently managed to squeeze out of the Ettus group how to control something with the GPIO so that I can manipulate an antenna array, so you are pretty much on your own for anything beyond the example programs in the existing software.
I did not understand the youtube popcorn thing.
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