[FOSS-GPS] High accuracy positioning with low cost GPS devices:a FOSS project

Jaykob jraible at gmx.de
Wed May 6 12:33:08 EDT 2009

It's not sure yet whether we will release the code. It depends on my
professor but I'll let you know when he took his decision.
I'm curious to know if the time correction helps in your case but I think it

Yes you're right. It's the ITOW from the RXM-RAW message that I'm using.
Here is my code for it:

          short oldweek = prevTime.GPSfullweek();
          short newweek = oldweek;
          double oldsow = prevTime.GPSsecond();
          double newsow;
          long int itow;
          DayTime thisTime;

    	  memcpy(&itow, &buffer[UBX_HEADER_LENGTH], 4);
    	  newsow = itow / 1000.0;

    	  // testing for week rollover
    	  if ((newsow+6*DayTime::SEC_DAY)<oldsow)

    	  thisTime = DayTime(newweek, newsow);
View this message in context: http://n2.nabble.com/High-accuracy-positioning-with-low-cost-GPS-devices%3A-a-FOSS-project-tp1312818p2820022.html
Sent from the Open Source GPS-related discussion and support mailing list archive at Nabble.com.

More information about the FOSS-GPS mailing list