The Journal of the Acoustical Society of Korea (한국음향학회지)

The Acoustical Society of Korea (한국음향학회)
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A study on the improvement of robust automatic initiated tracking on narrowband target

협대역표적 추적자동개시의 견실성 향상에 대한 연구

  • 김성원 (국방과학연구소 소나체계개발단) ;
  • 조현덕 (국방과학연구소 소나체계개발단) ;
  • 권택익 (국방과학연구소 소나체계개발단)
  • Received : 2020.10.08
  • Accepted : 2020.11.03
  • Published : 2020.11.30
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Abstract

In this paper, the method is discussed such that the robustness of automatic initiated narrowband target tracking is improved in passive sonar. In the case of automatic tracking initiation as target in passive sonar, due to a number of clutter, the clutter is initiated as target and tracked which prohibits the operation capability. The associated probability and information entropy of measurements, extracted from detection data, is calculated to keep going on automatic target initiation and tracking of true target, but reduce the automatic initiation and tracking of clutter. If the association probability and information entropy of the extracted measurements is satisfied for the predefined conditions, the procedure of automatic initiation begins. Using sea-trial data, simulations are executed and the results from the proposed method indicate that it keeps the automatic target initiation and tracking of true target and suppresses the automatic target initiation and tracking of clutters in contrary to the conventional method.

본 논문은 수상 및 수중 표적에 대한 수동소나 협대역추적의 자동초기화 견실성을 향상시키는 기법을 다루었다. 수동소나에서 탐지데이터를 활용하여 표적으로서 자동 판별 및 추적하는 경우에 탐지데이터 내 다수의 클러터에 의하여 클러터가 표적으로 판별 및 추적되며, 이는 운용자의 관심표적에 대한 인지를 방해한다. 수동소나에서 관심표적에 대한 자동 표적 판별 및 추적은 유지하면서 클러터에 대한 자동 표적 판별 및 추적은 감소하기 위하여 탐지 데이터 측정치의 연계 확률과 신호준위에 대한 정보 엔트로피를 산출한다. 탐지 데이터에서 추출한 측정치의 연계 확률과 정보 엔트로피가 사전 설정 조건을 만족하면 자동초기화 절차를 실시한다. 해상실험 데이터를 활용하여 시뮬레이션을 실시하였고, 기존 적용 기법에 대비하여 실표적에 대한 자동 추적은 유지하면서 클러터를 자동 추적하는 경향이 감소 하였다.

Keywords

References

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