Please try to refrain from embarrassing yourself further.
Radar and GPS work on COMPLETELY different principals and their applications have little in common. GPS is a passive system which requires multiple satellite signals received,decoded and displayed locally at the point of reception. RADAR is a non-co-operative system that relies upon the reception of the reflection of a transmitted signal.
Your link to a defunct “over the horizon” NORAD type installation just confirms your lack of appreciation of the differences...
BTW....No airborne RADAR system has EVER been able to read the license plate of a car. That would be a relatively low level OPTICAL system. Again ...NOTHING to due with RADAR or GPS. ...study up a bit