Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Main-Lobe Recognition for Sum-Delta Monopulse of Single-Ring Circular Array Antenna

단원형배열안테나의 합차 모노펄스 주엽 식별

  • Hyeongyu Park (Missile Research Institute, Agency for Defense Development) ;
  • Daewoong Woo (Missile Research Institute, Agency for Defense Development) ;
  • Jaesik Kim (Missile Research Institute, Agency for Defense Development)
  • 박현규 (국방과학연구소 미사일연구원) ;
  • 우대웅 (국방과학연구소 미사일연구원) ;
  • 김재식 (국방과학연구소 미사일연구원)
  • Received : 2022.12.27
  • Accepted : 2023.03.06
  • Published : 2023.04.05
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Abstract

The target must be located within the main-lobe of the antenna in order to measure the direction of the target by using sum-delta monopulse technique. The most common way if the target is located within the main-lobe is to compare the amplitude of the sum channel received signal with the delta channel received signal. However, in the case of the single-ring circular array antenna, it is difficult to apply the conventional method due to its structural limitation where antenna elements do not exist in the center of the array. In this paper, we proposed a novel method to identify whether a target is located within the main-lobe by appropriately adjusting the feeding amplitude of each element constituting the single-ring circular array antenna through the particle swarm optimization method. Simulation results showed that the proposed method can determine whether the target is located within the main-lobe of the single-ring circular array antenna.

Keywords

Acknowledgement

이 논문은 2015-2018년 정부의 재원으로 수행된 연구 결과임.

References

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  2. H. Park, J. Park, and D. Woo, "Efficient Direction Finding Method Using Space Division Table," KIMST Annual Conference Proceedings, pp. 193-194, 2017.
  3. H. Park, D. Woo, J. Kim, and J. Park, "Direction Finding and Tracking Using Single-Ring Circular Array Antenna and Space Division Table," Journal of the Korea Institute of Military Science and Technology, Vol. 25, No. 2, pp. 117-124, 2022. https://doi.org/10.9766/KIMST.2022.25.2.117
  4. H. Park, J. Park, and D. Woo, "Sidelobe Reduction for the Circular Array Antenna Using PSO," KIMST Fall Conference Proceedings, pp. 537-538, 2017.
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  6. C. A. Balanis, "Antenna Theory: Analysis and Design, 3rd ed.," Wiley, 2016.
  7. H. Park, J. Park, D. Woo, and J. Kim, "PSO Cost Function Modification for Side-Lobe Reduction of Single-Ring Circular Array Antenna," KIMST Fall Conference Proceedings, pp. 1203-1204, 2018.