23rd January 2011
As some of you already know may be others not, there is an upcoming effort [1] about implementing a GPS Device for the nanonote, _but_ in a free/libre way. As was already proved before you can attach [2] a commercial non-free GPS device and find your position on a nice map, but the idea is go further, so we want implement a sofware/hardware method for processing I/Q signals coming from a SiGE SE4162T GPS Receiver IC. So far i got some "raw" data [3], it is basically the 4-bit I/Q (2-bit I and 2-bit Q) from SiGE chip arranged [6] continuouslly. Now with help from Fabrizio Tapper from CTAE, this data is about to be processed in order to verify that the PRN codes [5] from the satellites on sky view [4] could be tracked. Of course any aditional help is wellcome :-). [1] http://en.qi-hardware.com/wiki/GPS_Free_Stack [2] http://en.qi-hardware.com/wiki/GPS [3] http://downloads.qi-hardware.com/people/kristianpaul/sige_01_06_11_22-43_GMT-5.out.tar.gz [4] http://downloads.qi-hardware.com/people/kristianpaul/gpredict_01_06_11_22-43_GMT-5.png [5] http://downloads.qi-hardware.com/people/kristianpaul/sige_01_06_11_22-43_GMT-5.PRN [6] http://projects.qi-hardware.com/index.php/p/ben-gps-sdr/source/tree/master/notes/data%20process
