Hello Tomoji, I upgraded my internal Debian package of rtklib to version 2.4.0 and reran all the commands I mentioned in my earlier email. Here's a summary of changes in output I got:
Timo Juhani Lindfors <[email protected]> writes: > Single mode (-p 0) > ================== > http://iki.fi/lindi/gps/experiment/2/p0-neo1-scatter.png > http://iki.fi/lindi/gps/experiment/2/p0-neo2-scatter.png http://iki.fi/lindi/gps/experiment/2/p0-neo1-scatter-2.4.0.png http://iki.fi/lindi/gps/experiment/2/p0-neo2-scatter-2.4.0.png => no changes > DGPS mode (-p 1) > ================ > http://iki.fi/lindi/gps/experiment/2/p1-neo1-scatter.png http://iki.fi/lindi/gps/experiment/2/p1-neo1-scatter-2.4.0.png => no changes > Kinematic mode (-p 2) > ===================== > http://iki.fi/lindi/gps/experiment/2/p2-neo1-scatter.png http://iki.fi/lindi/gps/experiment/2/p2-neo1-scatter-2.4.0.png => remarkable improvement! Scatter with radius of 0.00005 degrees is now gone and most of the points are very tighly packed in the middle with some slow random walk. Here's the same scatter in UTM coordinate system so that the units are meters in various zoom levels: http://iki.fi/lindi/gps/experiment/2/p2-neo1-scatter-utm5-2.4.0.png http://iki.fi/lindi/gps/experiment/2/p2-neo1-scatter-utm1-2.4.0.png http://iki.fi/lindi/gps/experiment/2/p2-neo1-scatter-utm0.30-2.4.0.png http://iki.fi/lindi/gps/experiment/2/p2-neo1-scatter-utm0.10-2.4.0.png http://iki.fi/lindi/gps/experiment/2/p2-neo1-scatter-utm0.03-2.4.0.png It really seems that a huge number of points stay inside a radius of just 2.5 centimeters. Can this really be true? _______________________________________________ This message is sent to you from [email protected] mailing list. Visit http://lists.osgeo.org/mailman/listinfo/foss-gps to manage your subscription For more information, check http://wiki.osgeo.org/wiki/FOSS-GPS
