The radar is located at the
point Pm.
αr is the radar pointing
angle.
ζ is the radar squint
angle.
β is the horizontal radar
half beamwidth
γ is the vertical
radar half beamwidth.
The ellipse depicts one of the possible
3-dB
illuminated shapes and areas on the ground.
For each radar position, the new
footprint
shape and area is calculated .