Abstract
Foreign object debris (FOD) on airport runways must be removed
immediately. To detect small debris, we proposed and developed an
optically-connected distributed-type 96 GHz millimeter-wave radar system
based on radio-over-fiber (RoF) technology and an optical fiber network.
The proposed distributed-type radar system offers both improved FOD
detection characteristics and cost performance. This paper details the
design and field feasibility evaluation of the 96 GHz frequency-modulated
continuous wave radar system that uses RoF and an optical frequency
multiplier. Firstly, the problem of long distance RoF transmission, which
limits the practical use of the RoF networked radar system in the airport
environment, is discussed. Secondly, the concept and architecture of the
millimeter-wave radar system are discussed and demonstrated focusing on
its use in actual airports. Then, the results of a field experiment are
shown to confirm the feasibility of the radar system. Finally, the
effectiveness of the high-speed signal processing and generation circuits
inside the central unit is evaluated at an actual airport based on the
results of non-coherent and coherent signal integration.
© 2016 IEEE
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