Re: [Discuss-gnuradio] Query on GPS

[David Bengtson]

Hi:

I'm still working on this slowly. I've selected the Maxim 2745 as the 
best part available that is reasonably accessible. I've ordered and 
received samples of the part from Maxim, and am starting to work on a 
block diagram, followed by a schematic. This is looking like a RX module 
to plug into the USRP board, and feed data into the FPGA for down 
sampling and filtering.

Question for folks on the mailing list. I'm a hardware engineer, and am 
more adept in programming in Matlab and solder than Python. Are there 
enough folks out there that would be interested in helping with the 
software to make this feasible, as I'm certainly not the guy to write 
the code. I do feel competent to do the block diagram for the software, 
although Krys is probably more up to speed on that. My guess is that we 
would need ~ 2 to 3 folks writing code to demodulate the GPS signal and 
turn it into a location. We can talk about generating hardware, as it 
looks like the GPS board by itself will be pretty cheap, although costs 
will have to wait until I have  BOM


Dave



Krzysztof Kamieniecki wrote:

> I love replying to myself.
>
> I updated my website with a plot showing the results of a correlator 
> doing a brute force search thru frequency and delay on the real raw data.
>
> Krzysztof Kamieniecki wrote:
>
> > I am, slowly but surely. I plan on using the USRP.
> > I recently got some raw data from a person associated with GPStk if 
> > you are interested.
> >
> > Right now David Bengtson is working on a daughter card.
> > http://www.keystoneradio.com/GnuGPS.html
> >
> > Other links of interest
> > My page: http://www.kamieniecki.com/krys/gps/
> > GnuRadio GPS page: http://comsec.com/wiki?GlobalPositioningSystem
> >
> > Robert McGwier wrote:
> >
> > > Who is working on a GPS receiver for the USRP or other hardware
> > > in this project?  I would like not to do duplication of effort.
> > >
> > > Bob
> > >
> > >
> > >
> > >
> > > _______________________________________________
> > > Discuss-gnuradio mailing list
> > > address@hidden
> > > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio