Hello: I´m suggesting a compass-driven car-mounted north-tracking platform, and on top of that a DGPS-driven plane-tracking antenna. With a modified softaware that compare the diferents coordinates of the ground station and the plane. The simplest way to corret issue of the heading of the car (I think) it´s with mobile platform. I´m suggesting that way because I haven´t got enough level of programation knowledge to do this in the same software...
Thanks Jesús