Calibration of 93.1GHz FOD Detection Radar on Airport Runway using Trihedral Corner Reflector

A corner reflector is one of the best methods to calibrate a radar system. The calibration method to calculate the radar cross section of corner reflectors for viewing arbitrary aspect angles on the airport runway is proposed. This work was conducted on a real airport environment at Kuala Lumpur International Airport (KLIA). In addition, the measurement was carried out at 93.1 GHz frequency for a Frequency Modulated Continuous Wave (FM-CW) radar detection system. The backscattering characteristics of a radar target, specific development of triangular trihedral corner reflector, standard runway slope measurement, measured theoretical maximum RCS value and experiment site evaluation are presented in this paper.