[time-nuts] Computing GPS Distance Error in Time

Brooke Clarke brooke at pacific.net
Thu Nov 7 18:59:23 UTC 2013


Hi Mark:

In the early days of GPS the "poor man's" correction was to do the math on the position.  But a better method is to 
correct the path for each satellite.

Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html

Mark Sims wrote:
> I'm not using any special surveying software,  just some code that I wrote.  The controller box and remote box both have GPS units in them.  The controller periodically requests the remote unit's position and just calculates the vector distance/bearing between the two units.  The application was intended to work with the boxes spaced 50-5000 feet apart.   I was rather surprised how well they worked very close together.  The next step is to add a magnetic compass module to the controller box so that it can draw a map of the remote units in relation to the orientation of the controller box.
> --------------
> What type of real-time surveying software are you using?  I'm looking for surveying/plotting software for Linux to keep a close on the timing stability of my Adafruit. 		 	   		
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