Re: [Discuss-gnuradio] usrp dbsrx to use in seti and radioastronomy

[Krzysztof Kamieniecki]

Hi Ben,

Have you taken a look at GNURadio wiki? Specifically the GPS page.
http://comsec.com/wiki?GlobalPositioningSystem

I have some code for software GPS at http://www.kamieniecki.com/krys/gps/

My project has been sidetrack by a contract project I am working on using
GNURadio. At this point I have decided on a way to integrate my existing GPS
code with GNURadio so that the few people who are using my code to process raw
data do not have to use GNURadio. I have created a GNURadio block that wraps my
GPS signal generator. The next step is to create a block that wraps my GPS
Correlator, and then a block that wraps my low level GPS Receiver (a set of
synchronized Correlators with a state machine controllers to track the signals
from the various GPS satellites) I ordered the dbsrx with the hope that at
least to possibility of getting realtime GPS signal data may spur me on.

Regards,
Krys

Quoting Marcus Leech <address@hidden>:
> Ben Loftin wrote:
> 
> > Could you elaborate on what you mean by seeing GPS L1.  Does this me 
> > acquisition, tracking, seeing bumps on an FFT, etc.  I ask because I 
> > am starting to build up algorithms for a GPS receiver to use with 
> > USRP.  I just finished the first simple one of generating the C/A code 
> > for each satellite.  You can check it out on on my blog at 
> > http://www.phys-x.org/grblog/grblog.html (try the link 
> > http://64.6.242.226/grblog/grblog.html since the higher domain 
> > registers need some time to refresh).
> >
> > Anybody else developing code for GPS so we can pool our efforts?
> >
> > Ben
> 
> I just saw the appropriate spectral bumps--I don't have a GPS processor.
> 
> 
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