ENRI papersENRI PAPER 101 Feb. 2003
Position accuracy of Airport Surface Surveillance System
We have developed the Airport Surface Surveillance System (ASSS) to enhance safety and efficiency of the ground control on airport surface. ASSS is capable of detecting aircraft on surface using Airport Surface Detection Equipment (ASDE) and displays detected aircraft on the screen as graphical symbols together with call-signs and other information. But the ASDE image of aircraft changes significantly with effect of aircraft attitude because of its extremely high resolution. This effect needs to be evaluated quantitatively to ensure the performance of ASSS. Then we have conducted an experiment to compare the aircraft position detected by ASDE with GPS-derived reference position to evaluate the detection error.
The result shows that the detection error is about 3.6m, which is the ASSS's minimum processing range unit, despite of aircraft attitude.