한국통신학회논문지 (The Journal of Korean Institute of Communications and Information Sciences)

  • 제42권3호
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  • Pages.661-672
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  • 2017
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  • 1226-4717(pISSN)
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  • 2287-3880(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
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지구 곡률이 고려된 LOB를 이용하는 NLSE 기반의 고정형 신호원 위치추정

Stationary Emitter Geolocation Based on NLSE Using LOBs Considering the Earth's Curvature

  • Park, Byungkoo (Department of Radio & Information Communications Engineering, Chungnam National University, Electronic Warfare PMO, Agency for Defense Development) ;
  • Kim, Sangwon (Electronic Warfare PMO, Agency for Defense Development) ;
  • Ahn, Jaemin (Department of Radio & Information Communications Engineering, Chungnam National University) ;
  • Kim, Youngmin (Electronic Warfare PMO, Agency for Defense Development)
  • 투고 : 2016.10.24
  • 심사 : 2017.02.27
  • 발행 : 2017.03.31
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초록

본 논문은 지구를 구체(Sphere)로 모델링하고, 좌표계 변환 없이 위경도 좌표계에서 지구 곡률이 고려된 곡선형태의 신호방향선(Line Of Bearing, LOB)을 이용하여 비선형 최소제곱법(Nonlinear Least Squared Estimator, NLSE)으로 고정형 신호원의 위치를 추정하는 방법을 소개한다. 그리고 추가적으로 지구를 타원체(Ellipsoid)로 모델링하여 위치추정성능을 개선하는 방법을 제안한다. 모의실험을 통해 지구 곡률이 고려된 곡선 LOB를 이용하는 NLSE 방법이 기존 삼각측량법(Triangulation Method) 대비 우수한 위치추정 성능을 가짐을 보이고 타원체 모델을 이용하여 위치추정성능을 개선함을 보인다.

This paper introduces the NLSE(Nonlinear Least Squared Estimator) using curved LOBs(Line Of Bearings) considering the earth curvature based on sphere to avoid the map conversion distortion and minimize the estimation error. This paper suggests a method improving a performance of the NLSE using curved LOBs by using an ellipsoid model. The analysis of the simulation results shows that the NLSE using curved LOBs has better performance than the conventional triangulation method and can improve its performance using a suggested method.

키워드

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피인용 문헌

  1. 플랫폼 피치 운동에 의한 방향탐지 오차 보상에 관한 연구 vol.43, pp.6, 2018, https://doi.org/10.7840/kics.2018.43.6.1020