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Added http reference address for source of coeffs and c code for if and when new coeffs are required.

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git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@2383 ebee16cc-31ac-478f-84a7-5cbb03baadba
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pip 2011-01-11 15:45:16 +00:00 committed by pip
parent b3d1c1f822
commit a1b03ef55c
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8
flight/Libraries/WorldMagModel.c
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@ -5,7 +5,15 @@
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
* @brief Source file for the World Magnetic Model
* This is a port of code available from the US NOAA.
*
* The hard coded coefficients should be valid until 2015.
*
* Updated coeffs from ..
* http://www.ngdc.noaa.gov/geomag/WMM/wmm_ddownload.shtml
*
* NASA C source code ..
* http://www.ngdc.noaa.gov/geomag/WMM/wmm_wdownload.shtml
*
* Major changes include:
* - No geoid model (altitude must be geodetic WGS-84)
* - Floating point calculation (not double precision)