Previous: Output Description
The algorithm described in Annex D is used for
the conversion between (line,pixel) coordinates to the corresponding
point P on an ellipsoid. (The Doppler, range and ellipsoid equation.)
This step consists of three steps basically.
- For the center (line,pixel) of the master image, compute the
position (x,y,z in system of the orbits) of the point P on an
- Based on the Doppler equation, compute the position of the slave
satellite, corresponding to the point P on an ellipsoid, and compute
the (line,pixel) coordinates in the slave system.
- The difference (slave-master) between the (line,pixel)
coordinates is defined as the offset.