Maybe little bit off-topic in this list, but any of you have tried gpstk ( http://www.gpstk.org/bin/view/Documentation/WebHome)?
I'm trying to use it in combination with gps-sdr. I'll keep you updated on my progress! BR, Carles On Sun, Aug 10, 2008 at 4:55 AM, Peter Monta <[EMAIL PROTECTED]> wrote: > > From my knowledge all the semi-codeless tracking algorithms are heavily >> patented, and hence cannot be found in textbooks or in any open forum. >> >> > But the patents themselves contain pretty good descriptions of the > techniques; > also there is this paper: > > > http://www.navcomtech.com/Support/Download/Optimum%20Semi-Codeless%20Carrier%20Phase%20Tracking%20of%20L2.pdf > > which summarizes all the options and adds a soft-decision refinement to > Z-tracking. Some of the patents will expire pretty soon, probably before > L2C is fully usable. > > There ought to be a fully open-source, geodetic-quality, dual-frequency (or > tri-frequency once we have L5, or quad- or quint-frequency once we have > Galileo and Glonass and accurate IGS orbits and clock ties for these other > GNSS systems), software receiver. I have no real connection with any of > this (just a hobbyist), but I'd enjoy having access to state-of-the-art > timing > and survey solutions. > > Finally snagged a dual-frequency antenna on Ebay a few weeks ago, so > only software sits between me and centimeter positioning and subnanosecond > UTC (or UTC(GPS) or UTC(IGS) anyway). > > > Cheers, > Peter > > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio >
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