Recommendation ITU-R P.1511-3
Policy on Intellectual Property Right (IPR)
�1���� Topography
������� 1.1���� Topographic height
�2���� WGS 84 Earth coordinate
system
������� 2.1���� WGS 84 reference
ellipsoid
������� 2.2���� WGS 84 reference
geoid
�3���� Calculation of look angles
and range between two stations in geodetic coordinates