Hi Peter, maybe you could be interested on this: at www.gps-sdr.com there is a C driver for the USRP that manages a couple of DBSRX daughterboards, one centered at L1 and the other one at L2, just what you are mentioning for building a dual-frequency GPS software receiver.
Cheers, Carles. On Fri, Aug 8, 2008 at 4:53 PM, Peter Monta <[EMAIL PROTECTED]> wrote: > On the chance that there are GPS folks here that are > familiar with the status of the new L2C signals: is there > a currently-maintained list of which satellite is emitting > what? In particular, PRN 29 seems to have no L2C (or > at least none that I can acquire), while PRN 31 has a nice > strong carrier (tracked with L2CM) but no NAV or CNAV data > modulation---it's apparently sending only carrier. I'd > like to find a signal with CNAV data. > > While I haven't tried it yet, the USRP should be capable > of saving to disk both L1 and L2C using a pair of dbsrx > daughtercards. That should permit dual-frequency > receiver software. It would be nice to have a > waveform-pair-to-RINEX tool to allow use of the various > web services for dual-frequency solutions. > > Cheers, > Peter > > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio >
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