FODs detection system based on millimeter wave FMCW radar

Foreign object debris (FODs) may cause accidents or disasters. Recently, FOD detection systems have been developed and tested on airports. Most of them are based on the association of a mm-wave radar and an optical sensor. This paper describes a compact broadband (77-78 GHz) mm-wave front-end used for FOD detection application. In this paper, the foreign object detection system is introduced, then the principle and composition of the system is given. Finally, the key technologies about antenna, mm-wave RF component, signal processing, data processing etc, are given.