[time-nuts] GPS position survey

Magnus Danielson magnus at rubidium.dyndns.org
Mon May 6 03:52:51 EDT 2013

I was using 90 deg = 10000000 m as approximation. I forgot about the sign but as I recall the leading 1 is surpressed. 360 deg on 25 bits. Reducing approx gave me 10 and 3 bits.

-------- Originalmeddelande --------
Från: Mark Sims <holrum at hotmail.com> 
Till: time-nuts at febo.com 
Rubrik: [time-nuts] GPS position survey 
Earth circumference is around 25,000 miles -> 132E6 feet.  24 bit mantissa (23 bits plus sign)  gives a resolution in this application of around 15.7 feet since negative measurements don't apply.
Oh... 24 bit mantissa should give 1.25 m resolution if my headcounting is about right      
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