Abstract

To detect small debris on the airport surface, the optically-connected distributed-type 96 GHz millimeter-wave radar system, which is based on radio-over-fiber (RoF) technology and an optical fiber network, has been proposed and developed. Such foreign object debris (FOD) is required to be removed immediately. The distributed-type radar system enables the improvement of both the FOD detection and cost performance. In this paper, design and construction methodology of the 96 GHz frequency-modulated continuous wave radar system based on the RoF and optical frequency doubler is discussed. The architecture of the millimeter-wave radar system, which is designed to enable a long distance RoF transmission, is demonstrated. In addition, the effectiveness of the high-speed signal processing circuit inside the central unit is evaluated at an actual airport.

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