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WAAS question -- altitude accuracy?



 
 
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  #11  
Old September 23rd 03, 09:56 PM
Sam Wormley
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steve wrote:

Doesn't the GPS give you 'altitude' -- computed as height above the
surface of an ellipsoid? Or does it correct for mean sea level? There
seem to be several computations required to derive true altitude from
the raw GPS altitude coordinate and it is not clear to me if particular
GPS receivers perform this adjustment.


See: http://edu-observatory.org/gps/height.html
 




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