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On Fri, 2007-03-09 at 12:46 +0000, Al Johnson wrote:<BR>
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<FONT COLOR="#000000">> So *military* devices does it. But not civil.</FONT>
<FONT COLOR="#000000">This is for *civil* devices.</FONT>
<FONT COLOR="#000000"><A HREF="http://pro.magellangps.com/en/products/aboutgps/dgps.asp">http://pro.magellangps.com/en/products/aboutgps/dgps.asp</A></FONT>
<FONT COLOR="#000000"><A HREF="http://pro.magellangps.com/en/products/aboutgps/rtk.asp">http://pro.magellangps.com/en/products/aboutgps/rtk.asp</A></FONT>
<FONT COLOR="#000000"><A HREF="http://en.wikipedia.org/wiki/Real_Time_Kinematic">http://en.wikipedia.org/wiki/Real_Time_Kinematic</A></FONT>
<FONT COLOR="#000000">Here's a civil device using RTK that "determines the position to centimeter </FONT>
<FONT COLOR="#000000">accuracy within a few seconds at ranges up to 50 km from a reference station"</FONT>
<FONT COLOR="#000000"><A HREF="http://www.leica-geosystems.com/uk/en/lgs_8276.htm">http://www.leica-geosystems.com/uk/en/lgs_8276.htm</A></FONT>
<FONT COLOR="#000000">In the UK the Ordnance Survey is making its data available for commercial RTK </FONT>
<FONT COLOR="#000000">networks.</FONT>
<FONT COLOR="#000000"><A HREF="http://www.ordnancesurvey.co.uk/oswebsite/gps/commercialservices/index.html">http://www.ordnancesurvey.co.uk/oswebsite/gps/commercialservices/index.html</A></FONT>
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<BR>
Very interesting thread. Took the liberty of adding some ideas entitled "<B><FONT SIZE="5">Cooperative Differential GPS</FONT></B>" related to this to the <A HREF="http://wiki.openmoko.org/wiki/Summer_of_code">Summer_of_code</A> Wiki page:<BR>
<BR>
<A HREF="http://wiki.openmoko.org/wiki/Summer_of_code">http://wiki.openmoko.org/wiki/Summer_of_code</A><BR>
<BR>
Please edit as appropriate to expand/correct.<BR>
<BR>
Phil<BR>
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