Long-range drone detection of 24 G FMCW radar with E-plane sectoral horn array

Byunggil Choi, Daegun Oh, Sunwoo Kim, Jong Wha Chong, Ying Chun Li

Research output: Contribution to journalArticle


In this work, a 24-GHz frequency-modulated continuous-wave (FMCW) radar system with two sectoral horn antennas and one transmitting lens antenna for long-range drone detection is presented. The present work demonstrates the detection of a quadcopter-type drone using the implemented radar system up to a distance of 1 km. Moreover, a 3D subspace-based algorithm is proposed for the joint range-azimuth-Doppler estimation of long-range drone detection. The effectiveness of the long-range drone detection is verified with the implemented radar system through a variety of experiments in outdoor environments. This is the first such demonstration for long-range drone detection with a 24-GHz FMCW radar.

Original languageEnglish
Article number4171
JournalSensors (Switzerland)
Issue number12
StatePublished - 2018 Dec


  • 3D subspace-based algorithm
  • Drone detection
  • FMCW

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